Players — B
- Charlie Babb 1903–1905
- Bob Babcock 1979–1981
- Loren Babe 1952–1953
- Johnny Babich 1934–1941
- Charlie Babington 1915–1915
- Shooty Babitt 1981–1981
- Lake Bachar 2024–2025
- Sam Bachman 2023–2025
- Brandon Backe 2002–2009
- Kyle Backhus 2025–2025
- Les Backman 1909–1910
- Wally Backman 1980–1993
- Eddie Bacon 1917–1917
- Mike Bacsik 1975–1980
- Mike Bacsik 2001–2007
- Dakota Bacus 2020–2020
- Fred Baczewski 1953–1955
- Akil Baddoo 2021–2025
- Burke Badenhop 2008–2015
- Art Bader 1904–1904
- Harrison Bader 2017–2025
- Lore Bader 1912–1918
- Red Badgro 1929–1930
- Ji Hwan Bae 2022–2025
- Ed Baecht 1926–1937
- Cha-Seung Baek 2004–2008
- Carlos Baerga 1990–2005
- Rudy Baerwald 1907–1907
- Benito Baez 2001–2001
- Danys Baez 2001–2011
- Javier Baez 2014–2025
- Jose Baez 1977–1978
- Julio Baez 1940–1940
- Kevin Baez 1990–1993
- Michel Baez 2019–2022
- Pedro Baez 2014–2022
- Sandy Baez 2018–2019
- Babe Bagby 1937–1937
- Jim Bagby 1912–1923
- Jim Bagby 1938–1947
- Ed Bagley 1884–1885
- Gene Bagley 1886–1886
- Bill Bagwell 1923–1925
- Jeff Bagwell 1991–2005
- Stan Bahnsen 1966–1982
- Ed Bahr 1946–1947
- Frank Bahret 1884–1884
- Grover Baichley 1914–1914
- Scott Bailes 1986–1998
- Abraham Bailey 1919–1921
- Alonza Bailey 1934–1935
- Andrew Bailey 2009–2017
- Bill Bailey 1907–1922
- Bill Bailey 1911–1911
- Bob Bailey 1962–1978
- Brandon Bailey 2020–2020
- Cory Bailey 1993–2002
- D. Bailey 1916–1916
- Ed Bailey 1953–1966
- Fred Bailey 1916–1918
- Gene Bailey 1917–1924
- Harvey Bailey 1899–1900
- Homer Bailey 2007–2020
- Howard Bailey 1981–1983
- Jeff Bailey 2007–2009
- Jim Bailey 1959–1959
- King Bailey 1895–1895
- Mark Bailey 1984–1992
- Patrick Bailey 2023–2025
- Percy Bailey 1933–1934
- Roger Bailey 1995–1997
- Steve Bailey 1967–1968
- baile01 1947–1947
- Bob Bailor 1975–1985
- Loren Bain 1945–1945
- Harold Baines 1980–2001
- Doug Bair 1976–1990
- Al Baird 1917–1919
- Bob Baird 1962–1963
- Doug Baird 1915–1920
- baird01 1946–1946
- Jeff Baisley 2008–2008
- Jeff Bajenaru 2004–2006
- Dave Bakenhaster 1964–1964
- Al Baker 1938–1938
- Bill Baker 1940–1949
- Bock Baker 1901–1901
- Bryan Baker 2021–2025
- Charlie Baker 1884–1884
- Chuck Baker 1978–1981
- Darren Baker 2024–2024
- Dave Baker 1982–1982
- Del Baker 1914–1916
- Doug Baker 1984–1990
- Dusty Baker 1968–1986
- Edgar Baker 1945–1945
- Ernie Baker 1905–1905
- Floyd Baker 1943–1955
- Frank Baker 1970–1974
- Frank Baker 1969–1971
- Gene Baker 1948–1961
- George Baker 1883–1886
- Henry Baker 1925–1932
- Home Run Baker 1908–1922
- Howard Baker 1912–1915
- Jack Baker 1976–1977
- Jeff Baker 2005–2015
- Jesse Baker 1919–1919
- Jesse Baker 1911–1911
- John Baker 2008–2014
- Kirtley Baker 1890–1899
- Luken Baker 2023–2025
- Neal Baker 1927–1927
- Norm Baker 1883–1890
- Phil Baker 1883–1886
- Rufus Baker 1943–1948
- Scott Baker 1995–1995
- Scott Baker 2005–2015
- Steve Baker 1978–1983
- Tom Baker 1963–1963
- Tom Baker 1935–1938
- Tracy Baker 1911–1911
- Jersey Bakley 1883–1891
- Paul Bako 1998–2009
- Mike Balas 1938–1938
- John Balaz 1974–1975
- Jordan Balazovic 2023–2023
- Steve Balboni 1981–1993
- Bobby Balcena 1956–1956
- Rocco Baldelli 2003–2010
- Alberto Baldonado 2021–2021
- Jack Baldschun 1961–1970
- Billy Baldwin 1975–1976
- Brooks Baldwin 2024–2025
- Dave Baldwin 1966–1973
- Drake Baldwin 2025–2025
- Frank Baldwin 1953–1953
- Harry Baldwin 1924–1925
- Henry Baldwin 1927–1927
- James Baldwin 1995–2005
- Jeff Baldwin 1990–1990
- Kid Baldwin 1884–1890
- Lady Baldwin 1884–1890
- Mark Baldwin 1887–1893
- Orson Baldwin 1908–1908
- Reggie Baldwin 1978–1979
- Rick Baldwin 1975–1977
- Tiny Baldwin 1925–1926
- baldw01 1947–1947
- John Bale 1999–2009
- Mike Balenti 1911–1913
- Wladimir Balentien 2007–2009
- Lee Bales 1966–1967
- Collin Balester 2008–2015
- Grant Balfour 2001–2015
- Art Ball 1894–1898
- Jeff Ball 1998–1998
- Jim Ball 1907–1908
- Neal Ball 1907–1913
- Walter Ball 1904–1921
- Jeff Ballard 1987–1994
- Pelham Ballenger 1928–1928
- Jay Baller 1982–1992
- Pedro Ballester 1948–1948
- Moisés Ballesteros 2025–2025
- Mark Ballinger 1971–1971
- Win Ballou 1925–1929
- Tony Balsamo 1962–1962
- George Bamberger 1951–1959
- Hal Bamberger 1948–1948
- Studs Bancker 1875–1875
- Dave Bancroft 1915–1930
- Anthony Banda 2017–2025
- Chris Bando 1981–1989
- Sal Bando 1966–1981
- Jett Bandy 2015–2018
- Eddie Bane 1973–1976
- Dick Baney 1969–1974
- Will Banfield 2025–2025
- Jeff Banister 1991–1991
- Dan Bankhead 1940–1951
- Fred Bankhead 1937–1948
- Sam Bankhead 1932–1948
- Scott Bankhead 1986–1995
- Brian Banks 1996–2003
- Charles Banks 1924–1924
- Ernie Banks 1953–1971
- F. Banks 1915–1920
- G. Banks 1915–1915
- George Banks 1962–1966
- Josh Banks 2007–2010
- Norman Banks 1945–1945
- Tanner Banks 2022–2025
- Willie Banks 1991–2002
- Bill Bankston 1915–1915
- Wes Bankston 2008–2008
- Jim Banning 1888–1889
- Alan Bannister 1974–1985
- Brian Bannister 2006–2010
- Floyd Bannister 1977–1992
- Jimmy Bannon 1893–1896
- Rylan Bannon 2022–2023
- Tom Bannon 1895–1896
- Jack Banta 1947–1950
- Brandon Bantz 2013–2013
- Manny Banuelos 2015–2022
- Travis Baptist 1998–1998
- Caleb Baragar 2020–2021
- Rod Barajas 1999–2012
- Manuel Baranda 1918–1918
- Walter Barbare 1914–1922
- Red Barbary 1943–1943
- Johnny Barbato 2016–2018
- William Barbeau 1905–1910
- Bud Barbee 1937–1948
- Dave Barbee 1926–1932
- Lamb Barbee 1940–1945
- Brian Barber 1995–1999
- Charlie Barber 1884–1884
- Jesse Barber 1910–1924
- Sam Barber 1940–1940
- Steve Barber 1960–1974
- Steve Barber 1970–1971
- Turner Barber 1915–1923
- Frank Barberich 1907–1910
- Bret Barberie 1991–1996
- Jim Barbieri 1966–1966
- Bull Barbour 1922–1922
- Lorenzo Barcelo 2000–2002
- Curt Barclay 1957–1959
- George Barclay 1902–1905
- Hunter Barco 2025–2025
- Daniel Bard 2009–2023
- Josh Bard 2002–2011
- Luke Bard 2018–2022
- Brian Barden 2007–2010
- Ray Bare 1972–1977
- Jesse Barfield 1981–1992
- John Barfield 1989–1991
- Josh Barfield 2006–2009
- Clyde Barfoot 1922–1926
- Greg Bargar 1983–1986
- Addison Barger 2024–2025
- Cy Barger 1906–1915
- Brian Bark 1995–1995
- Al Barker 1871–1871
- Glen Barker 1999–2001
- Kevin Barker 1999–2009
- Len Barker 1976–1987
- Luke Barker 2022–2022
- Marvin Barker 1935–1948
- Ray Barker 1960–1967
- Richie Barker 1999–1999
- Sean Barker 2007–2007
- Andy Barkett 2001–2001
- Brian Barkley 1998–1998
- Jeff Barkley 1984–1985
- Red Barkley 1937–1943
- Sam Barkley 1884–1889
- Joe Barlow 2021–2023
- Mike Barlow 1975–1981
- Scott Barlow 2018–2025
- Tom Barlow 1872–1875
- Bruce Barmes 1953–1953
- Clint Barmes 2003–2015
- Babe Barna 1937–1943
- Charlie Barnabe 1927–1928
- Austin Barnes 2015–2025
- Bill Barnes 1940–1947
- Bill Barnes 1884–1884
- Bob Barnes 1924–1924
- Brandon Barnes 2012–2018
- Brian Barnes 1990–1994
- Charlie Barnes 2021–2021
- Danny Barnes 2016–2018
- Eppie Barnes 1923–1924
- Frank Barnes 1957–1960
- Frank Barnes 1929–1930
- Fred Barnes 1924–1924
- Harry Barnes 1937–1948
- Honey Barnes 1926–1926
- Jacob Barnes 2016–2025
- Jesse Barnes 1915–1927
- John Barnes 2000–2001
- John Barnes 1922–1931
- Junie Barnes 1934–1934
- Larry Barnes 2001–2003
- Lute Barnes 1972–1973
- Matt Barnes 2014–2024
- Red Barnes 1927–1930
- Rich Barnes 1982–1983
- Ross Barnes 1871–1881
- Sam Barnes 1921–1921
- Scott Barnes 2012–2013
- Skeeter Barnes 1983–1994
- Vet Barnes 1937–1938
- Virgil Barnes 1919–1928
- Jack Barnett 1907–1907
- Mason Barnett 2025–2025
- Vic Barnett 1944–1944
- Tony Barnette 2016–2019
- Darwin Barney 2010–2017
- Ed Barney 1915–1916
- Rex Barney 1943–1950
- Clyde Barnhart 1920–1928
- Edgar Barnhart 1924–1924
- Les Barnhart 1928–1930
- Tucker Barnhart 2014–2025
- Vic Barnhart 1944–1946
- Dave Barnhill 1941–1948
- Herb Barnhill 1938–1946
- James Barnhill 1941–1941
- George Barnicle 1939–1941
- Billy Barnie 1874–1886
- Ed Barnowski 1965–1966
- Chris Barnwell 2006–2006
- Salome Barojas 1982–1988
- Steven Baron 2015–2019
- Daniel Barone 2007–2007
- Dick Barone 1960–1960
- Bob Barr 1935–1935
- Bob Barr 1883–1891
- Jim Barr 1971–1983
- Scotty Barr 1908–1909
- Steve Barr 1974–1976
- Kyle Barraclough 2015–2023
- Cuno Barragan 1961–1963
- German Barranca 1979–1982
- Manny Barreda 2021–2021
- Luis Barrera 2021–2022
- Tres Barrera 2019–2023
- Jose Barrero 2020–2025
- Franklin Barreto 2017–2020
- Aaron Barrett 2014–2020
- Bill Barrett 1871–1873
- Bill Barrett 1921–1930
- Bob Barrett 1923–1929
- Dick Barrett 1933–1945
- Frank Barrett 1939–1950
- Jake Barrett 2016–2019
- Jimmy Barrett 1899–1908
- John Barrett 1872–1872
- Johnny Barrett 1942–1946
- Marty Barrett 1982–1991
- Marty Barrett 1884–1884
- Michael Barrett 1998–2009
- Red Barrett 1937–1949
- Tim Barrett 1988–1988
- Tommy Barrett 1988–1992
- Jaime Barria 2018–2023
- Francisco Barrios 1974–1981
- Jose Barrios 1982–1982
- Manuel Barrios 1997–1998
- Yhonathan Barrios 2015–2015
- Frank Barron 1914–1914
- Red Barron 1929–1929
- Tony Barron 1996–1997
- Jorge Barrosa 2024–2025
- Cuke Barrows 1909–1912
- Frank Barrows 1871–1871
- Ed Barry 1905–1907
- Hardin Barry 1912–1912
- Jack Barry 1908–1919
- Jeff Barry 1995–1999
- John Barry 1899–1908
- Kevin Barry 2006–2007
- Rich Barry 1969–1969
- Tom Barry 1904–1904
- Joey Bart 2020–2025
- Kimera Bartee 1996–2001
- Dick Bartell 1927–1946
- Bob Barthelson 1944–1944
- Jimmy Barthmaier 2008–2008
- John Barthold 1904–1904
- Les Bartholomew 1928–1932
- Tony Bartirome 1952–1952
- Hop Bartlett 1924–1925
- Jason Bartlett 2004–2014
- Sapho Bartlett 1913–1914
- Bill Bartley 1903–1907
- Boyd Bartley 1943–1943
- Irv Bartling 1938–1938
- Bob Barton 1965–1974
- Brian Barton 2008–2009
- Daric Barton 2007–2014
- Eugene Barton 1906–1906
- Harry Barton 1905–1905
- Shawn Barton 1992–1996
- Sherman Barton 1897–1911
- Vince Barton 1931–1932
- William Barton 1891–1891
- Dave Bartosch 1945–1945
- Cliff Bartosh 2004–2005
- Charlie Bartson 1890–1890
- Philip Barzilla 2006–2006
- Bernardo Baró 1916–1929
- Luis Alexander Basabe 2020–2020
- Osleivis Basabe 2023–2023
- Chris Basak 2007–2007
- Samuel Basallo 2025–2025
- Monty Basgall 1948–1951
- Al Bashang 1912–1918
- Tyler Bashlor 2018–2020
- Walt Bashore 1936–1936
- Eddie Basinski 1944–1947
- Jim Baskette 1911–1913
- Anthony Bass 2011–2023
- Brian Bass 2008–2010
- Dick Bass 1939–1939
- Doc Bass 1918–1918
- John Bass 1871–1877
- Kevin Bass 1982–1995
- Leroy Bass 1940–1940
- Norm Bass 1961–1963
- Randy Bass 1977–1982
- Charley Bassett 1884–1892
- Pepper Bassett 1935–1948
- Rabe Bassham 1932–1932
- Chris Bassitt 2014–2025
- Johnny Bassler 1913–1927
- Brady Basso 2024–2025
- Antonio Bastardo 2009–2017
- Charlie Bastian 1884–1891
- Emil Batch 1904–1907
- Joe Batchelder 1923–1925
- Rich Batchelor 1993–1997
- John Bateman 1963–1972
- Aaron Bates 2009–2009
- Billy Bates 1989–1990
- Charlie Bates 1927–1927
- Del Bates 1970–1970
- Dick Bates 1969–1969
- Frank Bates 1898–1899
- Hubert Bates 1939–1939
- Jason Bates 1995–1998
- John Bates 1889–1889
- Johnny Bates 1906–1914
- Ray Bates 1913–1917
- Bill Bathe 1986–1990
- Miguel Batista 1992–2012
- Rafael Batista 1973–1975
- Tony Batista 1996–2007
- Kevin Batiste 1989–1989
- Kim Batiste 1991–1996
- Bill Batsch 1916–1916
- Charlie Batson 1908–1909
- Larry Battam 1895–1895
- George Batten 1912–1912
- Matthew Batten 2022–2024
- Peyton Battenfield 2023–2023
- Earl Battey 1955–1967
- Joe Battin 1871–1890
- Allen Battle 1995–1996
- Howard Battle 1995–1999
- Jim Battle 1927–1927
- Ray Battle 1944–1945
- Rufus Battle 1924–1924
- Chris Batton 1976–1976
- Matt Batts 1947–1956
- Brett Baty 2022–2025
- Harry Bauchman 1915–1921
- Al Bauer 1884–1886
- Hank Bauer 1948–1961
- Lou Bauer 1918–1918
- Rick Bauer 2001–2008
- Trevor Bauer 2012–2021
- Jake Bauers 2018–2025
- Russ Bauers 1936–1950
- Justin Baughman 1998–2000
- Buddy Baumann 2016–2018
- Frank Baumann 1955–1965
- Mike Baumann 2021–2024
- Paddy Baumann 1911–1917
- Jim Baumer 1949–1961
- George Baumgardner 1912–1916
- Ross Baumgarten 1978–1982
- Harry Baumgartner 1920–1920
- John Baumgartner 1953–1953
- Stan Baumgartner 1914–1926
- Frank Baumholtz 1947–1957
- George Bausewine 1889–1889
- Ed Bauta 1960–1964
- Danny Bautista 1993–2004
- Denny Bautista 2004–2010
- Felix Bautista 2022–2025
- Gerson Bautista 2018–2019
- Jose Bautista 1988–1997
- Jose Bautista 2004–2018
- Rafael Bautista 2017–2018
- Marcelino Bauza 1930–1930
- Jim Baxes 1959–1959
- Mike Baxes 1956–1958
- Mike Baxter 2010–2015
- Moose Baxter 1907–1907
- Harry Bay 1901–1908
- Jason Bay 2003–2013
- Burley Bayer 1899–1899
- Dick Bayless 1908–1908
- Henry Baylis 1948–1948
- Jonah Bayliss 2005–2007
- baylo01 1927–1927
- Don Baylor 1970–1988
- William Baynard 1915–1927
- Bill Bayne 1919–1930
- Shane Baz 2021–2025
- Eduard Bazardo 2021–2025
- Yorman Bazardo 2005–2009
- David Bañuelos 2024–2025
- Darius Bea 1934–1940
- Jack Beach 1884–1884
- Brandon Beachy 2010–2015
- Dave Beadle 1884–1884
- Giovanni Beale 1947–1947
- Bob Beall 1975–1980
- Johnny Beall 1913–1918
- Walter Beall 1924–1929
- Tommy Beals 1871–1880
- Alex Beam 1889–1889
- Ernie Beam 1895–1895
- T. J. Beam 2006–2008
- Charlie Beamon 1978–1981
- Charlie Beamon 1956–1958
- Trey Beamon 1996–1998
- Belve Bean 1930–1935
- Bill Bean 1987–1995
- Colter Bean 2005–2007
- Joe Bean 1902–1902
- Billy Beane 1984–1989
- Dave Beard 1980–1989
- Mike Beard 1974–1977
- Ollie Beard 1889–1891
- Ralph Beard 1954–1954
- Ted Beard 1948–1958
- Gene Bearden 1947–1953
- Gary Beare 1976–1977
- Larry Bearnarth 1963–1971
- Kevin Bearse 1990–1990
- Chris Beasley 1991–1991
- Jeremy Beasley 2020–2022
- Lew Beasley 1977–1977
- Ed Beatin 1887–1891
- Pedro Beato 2011–2017
- Jim Beattie 1978–1986
- Blaine Beatty 1989–1991
- Desmond Beatty 1914–1914
- Matt Beaty 2019–2023
- Jim Beauchamp 1963–1973
- Ginger Beaumont 1899–1910
- Blake Beavan 2011–2014
- Edward Beavens 1871–1872
- Dylan Beavers 2025–2025
- Johnny Beazley 1941–1949
- Buck Becannon 1884–1887
- Steve Bechler 2002–2002
- George Bechtel 1871–1876
- Boom-Boom Beck 1924–1945
- Chad Beck 2011–2012
- Chris Beck 2015–2018
- Clyde Beck 1926–1931
- Erve Beck 1899–1902
- Frank Beck 1884–1884
- Fred Beck 1909–1915
- George Beck 1914–1914
- Jordan Beck 2024–2025
- Rich Beck 1965–1965
- Rod Beck 1991–2004
- Tristan Beck 2023–2025
- Zinn Beck 1913–1918
- Henry Beckendorf 1909–1910
- Beals Becker 1908–1915
- Bob Becker 1897–1898
- Charlie Becker 1911–1912
- Heinz Becker 1943–1947
- Joe Becker 1936–1937
- Marty Becker 1915–1915
- Rich Becker 1993–2000
- Glenn Beckert 1965–1975
- Josh Beckett 2001–2014
- Robbie Beckett 1996–1997
- Gordon Beckham 2009–2019
- Tim Beckham 2013–2022
- Jake Beckley 1888–1907
- Jim Beckman 1927–1928
- Bill Beckmann 1939–1942
- Joe Beckwith 1979–1986
- John Beckwith 1920–1935
- Julio Becquer 1955–1963
- Erik Bedard 2002–2014
- Howie Bedell 1962–1968
- Gene Bedford 1925–1925
- Phil Bedgood 1922–1923
- Hugh Bedient 1912–1915
- Andy Bednar 1930–1931
- David Bednar 2019–2025
- Cam Bedrosian 2014–2021
- Steve Bedrosian 1981–1995
- Fred Beebe 1906–1916
- Matt Beech 1996–1998
- Ed Beecher 1887–1891
- Roy Beecher 1907–1908
- Tyler Beede 2018–2024
- Jalen Beeks 2018–2025
- Dallas Beeler 2014–2015
- Jodie Beeler 1944–1944
- Andy Beene 1983–1984
- Fred Beene 1968–1975
- Seth Beer 2021–2022
- Clarence Beers 1948–1948
- Clayton Beeter 2024–2025
- Joe Beggs 1938–1948
- Jim Begley 1924–1924
- Petie Behan 1921–1923
- Steve Behel 1884–1886
- Rick Behenna 1983–1985
- Mel Behney 1970–1970
- Hank Behrman 1946–1949
- Joe Beimel 2001–2015
- Kevin Beirne 2000–2002
- Agustín Bejerano 1928–1929
- Ollie Bejma 1934–1939
- Mark Belanger 1965–1982
- Wayne Belardi 1950–1956
- Kevin Belcher 1990–1990
- Tim Belcher 1987–2000
- Ira Belden 1897–1897
- Skinner Belfield 1948–1948
- Mike Belfiore 2013–2013
- Stan Belinda 1989–2000
- Bo Belinsky 1962–1970
- Ronald Belisario 2009–2015
- Matt Belisle 2003–2018
- Todd Belitz 2000–2001
- Jeff Beliveau 2012–2018
- Tim Belk 1996–1996
- Abe Bell 1924–1924
- Beau Bell 1935–1941
- Bill Bell 1952–1955
- Buddy Bell 1972–1989
- Chad Bell 2017–2018
- Charlie Bell 1889–1891
- Cliff Bell 1921–1931
- Cool Papa Bell 1922–1946
- David Bell 1995–2006
- Derek Bell 1991–2001
- Eric Bell 1985–1993
- Fern Bell 1939–1940
- Frank Bell 1891–1891
- Frank Bell 1885–1885
- Fred Bell 1923–1927
- Gary Bell 1958–1969
- George Bell 1907–1911
- George Bell 1981–1993
- Gus Bell 1950–1964
- Heath Bell 2004–2014
- Herman Bell 1924–1934
- Herman Bell 1940–1948
- Jake Bell 1946–1946
- Jay Bell 1986–2003
- Jerry Bell 1971–1974
- Joe Bell 1932–1932
- Josh Bell 2016–2025
- Josh Bell 2010–2012
- Juan Bell 1989–1995
- Jute Bell 1923–1931
- Kevin Bell 1976–1982
- Lefty Bell 1948–1948
- Les Bell 1923–1931
- Mike Bell 1990–1991
- Mike Bell 2000–2000
- Ralph Bell 1912–1912
- Rob Bell 2000–2007
- Terry Bell 1986–1987
- Trevor Bell 2009–2014
- W. Bell 1948–1948
- William Bell 1923–1937
- William Bell 1903–1904
- Zeke Bella 1957–1959
- Steve Bellan 1871–1873
- Andrew Bellatti 2015–2023
- Albert Belle 1989–2000
- Mark Bellhorn 1997–2007
- Rafael Belliard 1982–1998
- Ronnie Belliard 1998–2010
- Clay Bellinger 1999–2002
- Cody Bellinger 2017–2025
- Jack Bellman 1889–1889
- Brayan Bello 2022–2025
- Rob Belloir 1975–1978
- Edwin Bellorin 2007–2009
- Valente Bellozo 2024–2025
- Vince Belnome 2014–2014
- Duane Below 2011–2013
- Brandon Belt 2011–2023
- Carlos Beltran 1998–2017
- Francis Beltran 2002–2008
- Rigo Beltran 1997–2004
- Adrian Beltre 1998–2018
- Engel Beltre 2013–2013
- Esteban Beltre 1991–1996
- Omar Beltre 2010–2010
- Anthony Bemboom 2019–2023
- Harry Bemis 1902–1910
- Marvin Benard 1995–2003
- Freddie Benavides 1991–1994
- Johnny Bench 1967–1983
- Anthony Bender 2021–2025
- Charles Bender 1903–1925
- Art Benedict 1883–1883
- Bruce Benedict 1978–1989
- Alan Benes 1995–2003
- Andy Benes 1989–2002
- Joe Benes 1931–1931
- Ray Benge 1925–1938
- Benny Bengough 1923–1932
- Andrew Benintendi 2016–2025
- Juan Beniquez 1971–1988
- Armando Benitez 1994–2008
- Yamil Benitez 1995–1998
- Jerry Benjamin 1932–1948
- Mike Benjamin 1989–2002
- Stan Benjamin 1939–1945
- Wes Benjamin 2020–2021
- Henry Benn 1914–1914
- Ike Benners 1884–1884
- Bradford Bennett 1940–1942
- Bugs Bennett 1918–1921
- Charlie Bennett 1878–1893
- Dave Bennett 1964–1964
- Dennis Bennett 1962–1968
- Don Bennett 1930–1930
- Erik Bennett 1995–1996
- Frank Bennett 1927–1928
- Fred Bennett 1928–1931
- Gary Bennett 1995–2008
- Herschel Bennett 1923–1927
- Jeff Bennett 2004–2009
- Jimmie Bennett 1945–1948
- Joe Bennett 1923–1923
- Joel Bennett 1998–1999
- Pug Bennett 1906–1907
- Sam Bennett 1910–1925
- Shayne Bennett 1997–1999
- benne01 1942–1942
- George Bennette 1921–1932
- Joaquin Benoit 2001–2017
- Allen Benson 1934–1934
- Cleo Benson 1942–1942
- Gene Benson 1934–1948
- Joe Benson 2011–2011
- Kris Benson 1999–2010
- Vern Benson 1943–1953
- Will Benson 2022–2025
- Cy Bentley 1872–1872
- Jack Bentley 1913–1927
- Al Benton 1934–1952
- Butch Benton 1978–1985
- Larry Benton 1923–1935
- Rabbit Benton 1922–1922
- Rube Benton 1910–1925
- Sid Benton 1922–1922
- Chad Bentz 2004–2005
- Joe Benz 1911–1919
- Todd Benzinger 1987–1995
- Johnny Berardino 1939–1952
- Lou Berberet 1954–1960
- Jeff Berblinger 1997–1997
- Jason Bere 1993–2003
- Juan Berenguer 1978–1992
- Bruce Berenyi 1980–1986
- James Beresford 2016–2016
- Dave Berg 1998–2004
- Justin Berg 2009–2011
- Moe Berg 1923–1939
- Augie Bergamo 1944–1945
- Bill Bergen 1901–1911
- Marty Bergen 1896–1899
- Travis Bergen 2019–2021
- Boze Berger 1932–1939
- Brandon Berger 2001–2004
- Clarence Berger 1914–1914
- Heinie Berger 1907–1910
- Joe Berger 1913–1914
- Johnny Berger 1922–1927
- Tun Berger 1890–1892
- Wally Berger 1930–1940
- Peter Bergeron 1999–2004
- Ryan Bergert 2025–2025
- Brad Bergesen 2009–2012
- John Bergh 1876–1880
- Marty Berghammer 1911–1915
- Al Bergman 1916–1916
- Christian Bergman 2014–2018
- Dave Bergman 1975–1992
- Dusty Bergman 2004–2004
- Sean Bergman 1993–2000
- Jason Bergmann 2005–2010
- William Bergolla 2005–2005
- Frank Berkelbach 1884–1884
- Jason Berken 2009–2012
- Nate Berkenstock 1871–1871
- Lance Berkman 1999–2013
- Jack Berly 1924–1933
- Bob Berman 1918–1918
- Jonathan Bermúdez 2024–2024
- Warming Bernabel 2025–2025
- Roger Bernadina 2008–2014
- Plácido Bernal 1941–1941
- Victor Bernal 1977–1977
- Curt Bernard 1900–1901
- Dwight Bernard 1978–1982
- Joe Bernard 1909–1909
- Wynton Bernard 2022–2022
- Brennan Bernardino 2022–2025
- Tony Bernazard 1979–1991
- Adam Bernero 2000–2006
- Bill Bernhard 1899–1907
- Juan Bernhardt 1976–1979
- Walter Bernhardt 1918–1918
- Carlos Bernier 1953–1953
- Doug Bernier 2008–2015
- Johnny Bero 1948–1951
- Dale Berra 1977–1987
- Yogi Berra 1946–1965
- Dennis Berran 1912–1912
- Ray Berres 1934–1945
- Jose Berrios 2016–2025
- Angel Berroa 2001–2009
- Geronimo Berroa 1989–2000
- Prelander Berroa 2023–2024
- Steward Berroa 2024–2025
- Cannonball Berry 1937–1948
- Charlie Berry 1884–1884
- Charlie Berry 1925–1938
- Claude Berry 1904–1915
- Eddie Berry 1943–1943
- Joe Berry 1942–1946
- Joe Berry 1921–1922
- Joe Berry 1902–1902
- Ken Berry 1962–1975
- Neil Berry 1948–1954
- Quintin Berry 2012–2017
- Sean Berry 1990–2000
- Slim Berry 1930–1930
- Tom Berry 1871–1871
- berry01 1947–1947
- Damon Berryhill 1987–1997
- Frank Bertaina 1964–1970
- Harry Berte 1903–1903
- Dick Bertell 1960–1967
- Harry Berthrong 1871–1871
- Jon Berti 2018–2025
- Reno Bertoia 1953–1962
- Mike Bertotti 1995–1997
- Roman Bertrand 1936–1936
- Andres Berumen 1995–1996
- Fred Besana 1956–1956
- Bob Bescher 1908–1918
- Herman Besse 1940–1946
- Don Bessent 1955–1958
- Karl Best 1983–1988
- William Bestick 1872–1872
- Jim Beswick 1978–1978
- Dellin Betances 2011–2021
- Rafael Betancourt 2003–2015
- Yuniesky Betancourt 2005–2013
- Frank Betcher 1910–1910
- Wilson Betemit 2001–2013
- Christian Bethancourt 2013–2024
- Bill Bethea 1964–1964
- Jim Bethke 1965–1965
- Larry Bettencourt 1928–1932
- Jeff Bettendorf 1984–1984
- Alec Bettinger 2021–2021
- Chad Bettis 2013–2019
- Harry Betts 1903–1913
- Huck Betts 1920–1935
- Mookie Betts 2014–2025
- betts01 1938–1938
- Bruno Betzel 1914–1918
- Kurt Bevacqua 1971–1985
- Hal Bevan 1952–1961
- Bill Bevens 1944–1947
- Jason Beverlin 2002–2002
- Charlie Beverly 1925–1939
- Brian Bevil 1996–1998
- Lou Bevil 1942–1942
- Ben Beville 1901–1901
- Monte Beville 1903–1904
- Joe Biagini 2016–2021
- Buddy Biancalana 1982–1987
- Jeff Bianchi 2012–2015
- Tommy Bianco 1975–1975
- Hank Biasatti 1949–1949
- Rainey Bibbs 1933–1944
- Jim Bibby 1972–1984
- Tanner Bibee 2023–2025
- Austin Bibens-Dirkx 2017–2018
- Bo Bichette 2019–2025
- Dante Bichette 1988–2001
- Phil Bickford 2020–2024
- Vern Bickford 1948–1954
- Dan Bickham 1886–1886
- Charlie Bicknell 1948–1949
- Jesse Biddle 2018–2021
- Rocky Biddle 2000–2004
- Osvaldo Bido 2023–2025
- Shane Bieber 2018–2025
- Ed Biecher 1897–1898
- Brandon Bielak 2020–2024
- Oscar Bielaski 1872–1876
- Mike Bielecki 1984–1997
- Harry Biemiller 1920–1925
- Lou Bierbauer 1886–1898
- Nick Bierbrodt 2001–2004
- Randor Bierd 2008–2008
- Charles Bierman 1871–1871
- Steve Bieser 1997–1998
- Carson Bigbee 1916–1926
- Lyle Bigbee 1920–1921
- Larry Bigbie 2001–2006
- Elliot Bigelow 1929–1929
- Hunter Bigge 2024–2025
- Cavan Biggio 2019–2025
- Craig Biggio 1988–2007
- Charlie Biggs 1932–1932
- Ivan Bigler 1917–1917
- George Bignell 1884–1884
- Larry Biittner 1970–1983
- Dann Bilardello 1983–1992
- Jim Bilbrey 1949–1949
- Emil Bildilli 1937–1941
- Steve Bilko 1949–1962
- Harry Billiard 1908–1915
- Jack Billingham 1968–1980
- Bruce Billings 2011–2014
- Dick Billings 1968–1975
- Josh Billings 1913–1923
- Josh Billings 1927–1929
- Brent Billingsley 1999–1999
- Chad Billingsley 2006–2015
- Jimmy Binder 1930–1937
- William Binga 1897–1909
- Bingo Bingham 1910–1921
- George Binks 1944–1948
- binso01 1932–1932
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- Jack Biran 1916–1916
- Steve Biras 1944–1944
- Jud Birchall 1882–1884
- Doug Bird 1973–1983
- Frank Bird 1892–1892
- George Bird 1871–1871
- Greg Bird 2015–2019
- Jake Bird 2022–2025
- Kyle Bird 2019–2019
- Red Bird 1921–1921
- Leo Birdine 1927–1930
- Dave Birdsall 1871–1873
- Hayden Birdsong 2024–2025
- Mike Birkbeck 1986–1995
- Kurt Birkins 2006–2008
- Ralph Birkofer 1933–1937
- Joe Birmingham 1906–1914
- Babe Birrer 1955–1958
- Tim Birtsas 1985–1990
- Frank Biscan 1942–1948
- John Bischoff 1925–1926
- Joe Bisenius 2007–2010
- Bill Bishop 1886–1889
- Bill Bishop 1921–1921
- Braden Bishop 2019–2021
- Charlie Bishop 1952–1955
- Frank Bishop 1884–1884
- Jim Bishop 1923–1924
- Lloyd Bishop 1914–1914
- Max Bishop 1924–1935
- Mike Bishop 1983–1983
- Rivington Bisland 1912–1914
- John Bissant 1937–1947
- Del Bissonette 1928–1933
- Hiram Bithorn 1942–1947
- Joe Bitker 1990–1991
- Jeff Bittiger 1986–1989
- Red Bittmann 1889–1889
- Spencer Bivens 2024–2025
- Jim Bivin 1935–1935
- Brian Bixler 2008–2012
- James Bizzle 1947–1947
- George Bjorkman 1983–1983
- Ty Blach 2016–2024
- Bill Black 1924–1924
- Bob Black 1884–1884
- Bud Black 1952–1956
- Buddy Black 1981–1995
- Dave Black 1914–1923
- Don Black 1943–1948
- Howard Black 1926–1926
- Joe Black 1943–1957
- John Black 1911–1911
- Mason Black 2024–2025
- Ray Black 2018–2020
- Tyler Black 2024–2025
- Vic Black 2013–2014
- black01 1924–1924
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- Ethan Blackaby 1962–1964
- Charlie Blackburn 1915–1921
- Earl Blackburn 1912–1917
- George Blackburn 1897–1897
- Hugh Blackburn 1920–1920
- Jim Blackburn 1948–1951
- Nick Blackburn 2007–2012
- Paul Blackburn 2017–2025
- Ron Blackburn 1958–1959
- black02 1938–1938
- Lena Blackburne 1910–1929
- George Blackerby 1928–1928
- Travis Blackley 2004–2013
- Charlie Blackmon 2011–2024
- Cliff Blackmon 1937–1941
- Henry Blackmon 1920–1924
- Charlie Blackwell 1916–1928
- Ewell Blackwell 1942–1955
- Fred Blackwell 1917–1919
- Tim Blackwell 1974–1983
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- Rick Bladt 1969–1975
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- Rae Blaemire 1941–1941
- Aaron Blair 2016–2017
- Bill Blair 1888–1888
- Bill Blair 1948–1948
- Buddy Blair 1942–1942
- Carson Blair 2015–2015
- Clarence Blair 1929–1931
- Dennis Blair 1974–1980
- Garnett Blair 1942–1948
- Lonnie Blair 1948–1948
- Paul Blair 1964–1980
- Walter Blair 1907–1915
- Willie Blair 1990–2001
- Dick Blaisdell 1884–1884
- Casey Blake 1999–2011
- Ed Blake 1951–1957
- Frank Blake 1932–1935
- Harry Blake 1894–1899
- Sheriff Blake 1920–1937
- Linc Blakely 1934–1934
- Bob Blakiston 1882–1884
- Bradley Blalock 2024–2025
- Hank Blalock 2002–2010
- Chester Blanchard 1926–1928
- Johnny Blanchard 1955–1965
- Al Blanche 1935–1936
- Andres Blanco 2004–2017
- Carlos Blanco 1941–1941
- Dairon Blanco 2022–2025
- Damaso Blanco 1972–1974
- Gil Blanco 1965–1966
- Gregor Blanco 2008–2018
- Heberto Blanco 1941–1942
- Henry Blanco 1997–2013
- Ossie Blanco 1970–1974
- Ronel Blanco 2022–2025
- Tony Blanco 2005–2005
- Alphonzo Bland 1941–1941
- Nate Bland 2003–2003
- Fred Blanding 1910–1914
- Alex Blandino 2018–2021
- Coonie Blank 1909–1909
- Fred Blank 1894–1894
- Matt Blank 2000–2001
- Travis Blankenhorn 2020–2024
- Cliff Blankenship 1905–1909
- Homer Blankenship 1922–1928
- Kevin Blankenship 1988–1990
- Lance Blankenship 1988–1993
- Ted Blankenship 1922–1930
- blank01 1928–1928
- Kyle Blanks 2009–2015
- Larvell Blanks 1972–1980
- Cy Blanton 1934–1942
- Joe Blanton 2004–2017
- Jabari Blash 2016–2018
- Don Blasingame 1955–1966
- Wade Blasingame 1963–1972
- Steve Blass 1964–1974
- Steve Blateric 1971–1975
- Johnny Blatnik 1948–1950
- Buddy Blattner 1942–1949
- Frank Blattner 1921–1921
- Jeff Blauser 1987–1999
- Harvey Blauvelt 1890–1890
- Bob Blaylock 1956–1959
- Fred Blaylock 1945–1945
- Gary Blaylock 1959–1959
- Marv Blaylock 1950–1957
- Michael Blazek 2013–2019
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- Larry Bleach 1937–1937
- JJ Bleday 2022–2025
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- Curt Blefary 1965–1972
- Jeremy Bleich 2018–2018
- Richard Bleier 2016–2023
- Ray Blemker 1960–1960
- Ike Blessitt 1972–1972
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- Fox Blevins 1932–1936
- Jerry Blevins 2007–2019
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- Scott Blewett 2020–2025
- Ned Bligh 1886–1890
- Elmer Bliss 1903–1904
- Frank Bliss 1878–1878
- Jack Bliss 1908–1912
- Ryan Bliss 2024–2025
- Bruno Block 1907–1914
- Cy Block 1942–1946
- Terry Blocker 1985–1989
- block01 1931–1931
- Wes Blogg 1883–1883
- Ron Blomberg 1969–1978
- Ben Blomdahl 1995–1995
- Joe Blong 1875–1877
- Jimmy Bloodworth 1937–1951
- Bud Bloomfield 1963–1964
- Willie Bloomquist 2002–2015
- Jake Bloss 2024–2024
- Greg Blosser 1993–1994
- Jack Blott 1924–1924
- Mike Blowers 1989–1999
- AJ Blubaugh 2025–2025
- Bert Blue 1908–1908
- Lu Blue 1921–1933
- Vida Blue 1969–1986
- Ossie Bluege 1922–1939
- Otto Bluege 1932–1933
- Jim Bluejacket 1914–1916
- Red Bluhm 1918–1918
- Geoff Blum 1999–2012
- Jaime Bluma 1996–1996
- Clint Blume 1922–1923
- Bert Blyleven 1970–1992
- Mike Blyzka 1953–1954
- Lucas Boada 1919–1924
- Chet Boak 1960–1961
- Beverly Boanes 1942–1942
- Charlie Boardman 1913–1915
- Frederick Boardman 1874–1874
- Randy Bobb 1968–1969
- Willie Bobo 1923–1930
- Hiram Bocachica 2000–2007
- John Boccabella 1963–1974
- Milt Bocek 1933–1934
- Bruce Bochte 1974–1986
- Doug Bochtler 1995–2000
- Brett Bochy 2014–2015
- Bruce Bochy 1978–1987
- Eddie Bockman 1946–1949
- Randy Bockus 1986–1989
- Brian Bocock 2008–2010
- Mike Boddicker 1980–1993
- Ping Bodie 1911–1921
- Tony Boeckel 1917–1923
- George Boehler 1912–1926
- Joe Boehling 1912–1920
- Len Boehmer 1967–1971
- Brian Boehringer 1995–2004
- Larry Boerner 1932–1932
- Brennan Boesch 2010–2015
- Joe Boever 1985–1996
- Xander Bogaerts 2013–2025
- Tim Bogar 1993–2001
- John Bogart 1920–1920
- Terry Bogener 1982–1982
- Brandon Boggs 2008–2011
- George Boggs 1923–1928
- Mitchell Boggs 2008–2013
- Ray Boggs 1928–1928
- Tommy Boggs 1976–1985
- Wade Boggs 1982–1999
- Warren Bogle 1968–1968
- Brian Bogusevic 2010–2015
- Brian Bohanon 1990–2001
- Pat Bohen 1913–1914
- Alec Bohm 2020–2025
- Charlie Bohn 1882–1882
- T. J. Bohn 2006–2008
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- John Bohnet 1982–1982
- Bruce Boisclair 1974–1979
- Dan Boitano 1978–1982
- Dick Bokelmann 1951–1953
- Bob Boken 1933–1934
- Joe Bokina 1936–1936
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- Ed Boland 1934–1944
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- Charlie Bold 1914–1914
- Bill Bolden 1919–1919
- Otto Bolden 1910–1912
- Stew Bolen 1926–1932
- Carl Boles 1962–1962
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- Frank Bolick 1993–1998
- Bobby Bolin 1961–1973
- Frank Bolling 1954–1966
- Jack Bolling 1939–1944
- Milt Bolling 1952–1958
- Greg Bollo 1965–1966
- Don Bollweg 1950–1955
- Mike Bolsinger 2014–2017
- Skye Bolt 2019–2022
- Cecil Bolton 1928–1928
- Cliff Bolton 1931–1941
- Cody Bolton 2023–2025
- Rod Bolton 1993–1995
- Tom Bolton 1987–1994
- Mark Bomback 1978–1982
- Ted Bond 1935–1940
- Tommy Bond 1874–1884
- Walt Bond 1960–1967
- Jeremy Bonderman 2003–2013
- Barry Bonds 1986–2007
- Bobby Bonds 1968–1981
- George Bone 1901–1901
- Ricky Bones 1991–2001
- Julio Bonetti 1937–1940
- Hank Boney 1927–1927
- Jung Bong 2002–2004
- Nino Bongiovanni 1938–1939
- Bill Bonham 1971–1980
- Tiny Bonham 1940–1949
- Emilio Bonifacio 2007–2020
- Jorge Bonifacio 2017–2021
- Joe Bonikowski 1962–1962
- Bobby Bonilla 1986–2001
- Juan Bonilla 1981–1987
- Lisalverto Bonilla 2014–2017
- Luther Bonin 1913–1914
- Eddie Bonine 2008–2010
- Barry Bonnell 1977–1986
- Bobby Bonner 1980–1983
- Frank Bonner 1894–1903
- Robert Bonner 1922–1926
- Bill Bonness 1944–1944
- Gus Bono 1920–1920
- Boof Bonser 2006–2010
- Zeke Bonura 1934–1940
- Everett Booe 1913–1914
- Buddy Booker 1966–1968
- Chris Booker 2005–2007
- Greg Booker 1983–1990
- Pete Booker 1905–1914
- Rod Booker 1987–1991
- bookm01 1914–1914
- Al Bool 1928–1931
- Red Booles 1909–1909
- Aaron Boone 1997–2009
- Alonzo Boone 1929–1947
- Bob Boone 1972–1990
- Bret Boone 1992–2005
- Dan Boone 1919–1923
- Danny Boone 1981–1990
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- Luke Boone 1913–1918
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- Ray Boone 1948–1960
- Robert Boone 1910–1912
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- John Boozer 1962–1969
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- Pedro Borbon 1992–2003
- Pedro Borbon 1969–1980
- Joe Borchard 2002–2007
- George Borchers 1888–1895
- Frenchy Bordagaray 1934–1945
- Joe Borden 1932–1932
- Joe Borden 1875–1876
- Pat Borders 1988–2005
- Rich Bordi 1980–1988
- Mike Bordick 1990–2003
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- José Borges 1906–1908
- Glenn Borgmann 1972–1980
- Paul Boris 1982–1982
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- Bob Borkowski 1950–1955
- Dave Borkowski 1999–2008
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- Tom Borland 1960–1961
- John Bormann 2017–2017
- Red Borom 1944–1945
- Steve Boros 1957–1965
- Joe Borowski 1995–2008
- Hank Borowy 1942–1951
- Mario Borroto 1920–1921
- Babe Borton 1912–1916
- Ryan Borucki 2018–2025
- J. C. Boscan 2010–2013
- Wilfredo Boscan 2016–2016
- Don Bosch 1966–1969
- Rick Bosetti 1976–1982
- Buddy Boshers 2013–2019
- Chris Bosio 1986–1996
- Shawn Boskie 1990–1998
- Thad Bosley 1977–1990
- Dick Bosman 1966–1976
- Harley Boss 1928–1933
- Mel Bosser 1945–1945
- bosti01 1946–1946
- Akeem Bostick 2021–2021
- Christopher Bostick 2017–2018
- Fred Bostick 1923–1923
- Henry Bostick 1915–1915
- Lyman Bostock 1975–1978
- Lyman Bostock 1940–1948
- Bob Boston 1948–1948
- Daryl Boston 1984–1994
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- Dave Boswell 1964–1971
- Ken Boswell 1967–1977
- David Bote 2018–2024
- Derek Botelho 1982–1985
- Ricky Bottalico 1994–2005
- John Bottarini 1937–1937
- Kent Bottenfield 1992–2001
- Ralph Botting 1979–1980
- Jim Bottomley 1922–1937
- Jason Botts 2005–2008
- Bob Botz 1962–1962
- Sean Bouchard 2022–2025
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- Al Boucher 1914–1914
- Denis Boucher 1991–1994
- Medric Boucher 1914–1914
- Lou Boudreau 1938–1952
- Carl Bouldin 1961–1964
- Jake Boultes 1907–1909
- Justin Bour 2014–2019
- Jason Bourgeois 2008–2015
- Steve Bourgeois 1996–1996
- Chris Bourjos 1980–1980
- Peter Bourjos 2010–2019
- Michael Bourn 2006–2016
- Rafael Bournigal 1992–1999
- James Bourque 2019–2020
- Pat Bourque 1971–1974
- Caleb Boushley 2023–2025
- Jim Bouton 1962–1978
- Mike Bovee 1997–1997
- Larry Bowa 1970–1985
- Benny Bowcock 1903–1903
- Ben Bowden 2021–2025
- Michael Bowden 2008–2013
- Tim Bowden 1914–1914
- Lefty Bowe 1939–1940
- Chick Bowen 1919–1919
- Chuck Bowen 1937–1937
- Cy Bowen 1896–1896
- Rob Bowen 2003–2008
- Ryan Bowen 1991–1995
- Sam Bowen 1977–1980
- Sam Bowens 1963–1969
- Frank Bowerman 1895–1909
- Billy Bowers 1949–1949
- Brent Bowers 1996–1996
- Cedrick Bowers 2008–2010
- Julie Bowers 1946–1947
- Lefty Bowers 1926–1927
- Shane Bowers 1997–1997
- Stew Bowers 1935–1937
- Frank Bowes 1890–1890
- Jim Bowie 1994–1994
- Micah Bowie 1999–2008
- John Bowker 2008–2011
- Jonathan Bowlan 2023–2025
- Grant Bowler 1931–1932
- Brian Bowles 2001–2003
- Charlie Bowles 1943–1945
- Emmett Bowles 1922–1922
- Weldon Bowlin 1967–1967
- Steve Bowling 1976–1977
- Abe Bowman 1914–1915
- Bill Bowman 1891–1891
- Bob Bowman 1939–1942
- Bob Bowman 1955–1959
- Elmer Bowman 1920–1920
- Emmett Bowman 1905–1911
- Ernie Bowman 1961–1963
- Joe Bowman 1932–1945
- Matthew Bowman 2016–2025
- Roger Bowman 1949–1955
- Sumner Bowman 1890–1891
- bowma01 1932–1932
- Red Bowser 1910–1910
- Ted Bowsfield 1958–1964
- Travis Bowyer 2005–2005
- Brad Boxberger 2012–2023
- Ben Boyd 1891–1891
- Bill Boyd 1872–1875
- Bob Boyd 1947–1961
- Eddie Boyd 1920–1920
- Frank Boyd 1893–1893
- Fred Boyd 1922–1922
- Gary Boyd 1969–1969
- Jake Boyd 1894–1896
- Jason Boyd 1999–2004
- Jimmy Boyd 1946–1946
- Matt Boyd 2015–2025
- Oil Can Boyd 1982–1991
- Ollie Boyd 1933–1934
- Ray Boyd 1910–1911
- Blaine Boyer 2005–2018
- Clete Boyer 1955–1971
- Cloyd Boyer 1949–1955
- Ken Boyer 1955–1969
- Doe Boyland 1978–1981
- Buzz Boyle 1929–1935
- Eddie Boyle 1896–1896
- Henry Boyle 1884–1889
- Jack Boyle 1912–1912
- Jack Boyle 1886–1898
- Jim Boyle 1926–1926
- Joe Boyle 2023–2025
- Harry Boyles 1938–1939
- Marshall Boze 1996–1996
- Gene Brabender 1966–1970
- Brad Brach 2011–2021
- Silvino Bracho 2015–2023
- Gibby Brack 1937–1939
- Doc Bracken 1946–1947
- Jack Bracken 1901–1901
- John Brackenridge 1904–1904
- Andrew Brackman 2011–2011
- Zach Braddock 2010–2011
- Dallas Braden 2007–2011
- Don Bradey 1964–1964
- Bill Bradford 1938–1945
- Bill Bradford 1956–1956
- Buddy Bradford 1966–1976
- Chad Bradford 1998–2009
- Charlie Bradford 1922–1927
- Chase Bradford 2017–2019
- Cody Bradford 2023–2024
- Larry Bradford 1977–1981
- Vic Bradford 1943–1943
- Kyle Bradish 2022–2025
- Al Bradley 1884–1884
- Archie Bradley 2015–2023
- Bert Bradley 1983–1983
- Bill Bradley 1899–1915
- Bobby Bradley 2019–2022
- Foghorn Bradley 1876–1876
- Frank Bradley 1937–1942
- Fred Bradley 1948–1949
- George Bradley 1946–1946
- George Bradley 1875–1888
- Herb Bradley 1927–1929
- Hugh Bradley 1910–1915
- Jack Bradley 1916–1916
- Jackie Bradley 2013–2023
- Jed Bradley 2016–2016
- Mark Bradley 1981–1983
- Milton Bradley 2000–2011
- Phil Bradley 1983–1990
- Phil Bradley 1907–1914
- Provine Bradley 1937–1939
- Red Bradley 1927–1927
- Ryan Bradley 1998–1998
- Scott Bradley 1984–1992
- Taj Bradley 2023–2025
- Tom Bradley 1969–1975
- bradl01 1932–1932
- Dallas Bradshaw 1917–1917
- George Bradshaw 1952–1952
- Joe Bradshaw 1929–1929
- Terry Bradshaw 1995–1996
- Bill Brady 1912–1912
- Bob Brady 1946–1947
- Brian Brady 1989–1989
- Cliff Brady 1920–1920
- Doug Brady 1995–1995
- Farmer Brady 1924–1924
- Jim Brady 1956–1956
- King Brady 1905–1912
- Michael Brady 2017–2017
- Neal Brady 1915–1925
- Spike Brady 1875–1875
- Steve Brady 1874–1886
- Bobby Bragan 1940–1948
- Ramón Bragaña 1928–1928
- Darren Bragg 1994–2004
- Jesse Bragg 1907–1918
- Dick Braggins 1901–1901
- Glenn Braggs 1986–1992
- Dave Brain 1901–1908
- Asa Brainard 1871–1874
- Fred Brainard 1914–1916
- Al Braithwood 1915–1915
- Erv Brame 1928–1932
- Art Bramhall 1935–1935
- bramm01 1932–1932
- Ralph Branca 1944–1956
- Al Brancato 1939–1945
- Harvey Branch 1962–1962
- Norm Branch 1941–1942
- Roy Branch 1979–1979
- Ron Brand 1963–1971
- Mark Brandenburg 1995–1997
- Chick Brandom 1908–1915
- Darrell Brandon 1966–1973
- Bill Brandt 1941–1943
- Ed Brandt 1928–1938
- Jackie Brandt 1956–1967
- Slim Branham 1920–1932
- George Branigan 1926–1927
- Otis Brannan 1928–1929
- Mike Brannock 1871–1875
- Dud Branom 1927–1927
- Kitty Bransfield 1898–1911
- Jeff Branson 1992–2001
- Marshall Brant 1980–1983
- Cliff Brantley 1991–1992
- Jeff Brantley 1988–2001
- Michael Brantley 2009–2023
- Mickey Brantley 1986–1989
- Rob Brantly 2012–2025
- Russell Branyan 1998–2011
- Matt Brash 2022–2025
- Kitty Brashear 1899–1899
- Roy Brashear 1902–1903
- Ryan Brasier 2013–2025
- Joe Bratcher 1924–1924
- Archie Brathwaite 1944–1948
- Fred Bratschi 1921–1927
- Steven Brault 2016–2022
- John Braun 1964–1964
- Ryan Braun 2007–2020
- Ryan Braun 2006–2007
- Steve Braun 1971–1985
- Angel Bravo 1969–1971
- Garland Braxton 1921–1933
- Bill Bray 2006–2012
- Buster Bray 1941–1941
- James Bray 1925–1931
- Ben Braymer 2020–2020
- Craig Brazell 2004–2007
- Clarkson Brazelton 1916–1916
- Dewon Brazelton 2002–2006
- Frank Brazill 1921–1922
- Al Brazle 1943–1954
- Huascar Brazoban 2022–2025
- Yhency Brazoban 2004–2011
- Leslie Brea 2000–2001
- Sid Bream 1983–1994
- Jim Breazeale 1969–1978
- John Brebbia 2017–2025
- Harry Brecheen 1940–1953
- Bill Breckinridge 1929–1929
- Brent Brede 1996–1998
- Danny Breeden 1969–1971
- Hal Breeden 1971–1975
- Marv Breeding 1960–1963
- brees01 1945–1945
- Alex Bregman 2016–2025
- Fred Breining 1980–1984
- Alonzo Breitenstein 1883–1883
- Theodore Breitenstein 1891–1901
- Eugene Bremer 1937–1948
- Herb Bremer 1937–1939
- Sam Brenegan 1914–1914
- Bob Brenly 1981–1989
- Ad Brennan 1910–1918
- Brandon Brennan 2019–2021
- Don Brennan 1933–1937
- Jack Brennan 1884–1890
- Tom Brennan 1981–1985
- Will Brennan 2022–2025
- William Brennan 1988–1993
- Jim Brenneman 1965–1965
- Bert Brenner 1912–1912
- Lynn Brenton 1913–1921
- Bryce Brentz 2014–2016
- Jake Brentz 2021–2022
- Bill Brenzel 1932–1935
- Craig Breslow 2005–2017
- Roger Bresnahan 1897–1915
- Rube Bressler 1914–1932
- Eddie Bressoud 1956–1967
- Jim Breton 1913–1915
- George Brett 1973–1993
- Herbert Brett 1924–1925
- Ken Brett 1967–1981
- Ryan Brett 2015–2015
- Marv Breuer 1939–1943
- Billy Brewer 1993–1999
- Charles Brewer 2013–2013
- Chet Brewer 1925–1948
- Colten Brewer 2018–2024
- Jack Brewer 1944–1946
- Jim Brewer 1960–1976
- McKinley Brewer 1921–1921
- Mike Brewer 1986–1986
- Rod Brewer 1990–1993
- Sherwood Brewer 1947–1948
- Tom Brewer 1954–1961
- Tony Brewer 1984–1984
- Jamie Brewington 1995–2000
- Charlie Brewster 1943–1946
- brews01 1937–1937
- Alan Brice 1961–1961
- Austin Brice 2016–2022
- Jose Briceno 2018–2020
- Fred Brickell 1926–1933
- Fritz Brickell 1958–1961
- George Brickley 1913–1913
- Ralph Brickner 1952–1952
- Jonah Bride 2022–2025
- Jim Brideweser 1951–1957
- Marshall Bridges 1959–1965
- Rocky Bridges 1951–1961
- Tommy Bridges 1930–1946
- Al Bridwell 1905–1915
- Parker Bridwell 2016–2018
- Bunny Brief 1912–1917
- Beau Brieske 2022–2025
- Bo Briggery 1932–1932
- Buttons Briggs 1896–1905
- Charlie Briggs 1884–1884
- Dan Briggs 1975–1982
- Grant Briggs 1890–1895
- John Briggs 1964–1975
- John Briggs 1956–1960
- Otto Briggs 1915–1934
- Jake Brigham 2015–2015
- Jeff Brigham 2018–2025
- Harry Bright 1958–1965
- Johnny Bright 1907–1907
- Reid Brignac 2008–2016
- Nelson Briles 1965–1978
- Greg Briley 1988–1993
- Frank Brill 1884–1884
- Jim Brillheart 1922–1931
- Brad Brink 1992–1994
- Bill Brinker 1912–1912
- Chuck Brinkman 1969–1974
- Ed Brinkman 1961–1975
- Leon Brinkopf 1952–1952
- Lewis Brinson 2017–2022
- brins01 1938–1938
- Fatty Briody 1880–1888
- Jesse Briscoe 1914–1914
- John Briscoe 1991–1996
- Lou Brissie 1947–1953
- Braden Bristo 2023–2023
- George Bristow 1899–1899
- Bernardo Brito 1992–1995
- Eude Brito 2005–2006
- Jhony Brito 2023–2024
- Jorge Brito 1995–1996
- Juan Brito 2002–2004
- Socrates Brito 2015–2019
- Tilson Brito 1996–1997
- George Britt 1917–1944
- Jim Britt 1872–1873
- Gus Brittain 1937–1937
- Jack Brittin 1950–1951
- Chris Britton 2006–2008
- Drake Britton 2013–2014
- Gil Britton 1913–1913
- Jim Britton 1967–1971
- John Britton 1942–1948
- Zack Britton 2011–2022
- Tony Brizzolara 1979–1984
- Johnny Broaca 1934–1939
- Willie Broadnacks 1929–1929
- Lance Broadway 2007–2009
- Mike Broadway 2015–2016
- Pete Broberg 1971–1978
- Doug Brocail 1992–2009
- Chris Brock 1997–2002
- Greg Brock 1982–1991
- John Brock 1917–1918
- Lou Brock 1961–1979
- Tarrik Brock 2000–2000
- King Brockett 1907–1911
- Brian Broderick 2011–2011
- Matt Broderick 1903–1903
- Steve Brodie 1890–1902
- Dick Brodowski 1952–1959
- Connor Brogdon 2020–2025
- Ernie Broglio 1959–1966
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- Bill Burns 1908–1912
- Billy Burns 2014–2017
- Britt Burns 1978–1985
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- Chase Burns 2025–2025
- Cory Burns 2012–2013
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- Dick Burns 1883–1885
- Ed Burns 1912–1918
- Farmer Burns 1901–1901
- George Burns 1911–1925
- George Burns 1914–1929
- Jack Burns 1930–1936
- Jack Burns 1903–1904
- Jim Burns 1888–1891
- Joe Burns 1924–1924
- Joe Burns 1943–1945
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- Joseph Burns 1910–1913
- Mike Burns 2005–2009
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- Todd Burns 1988–1993
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- Willie Burns 1935–1945
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- Jeff Burroughs 1970–1985
- Sean Burroughs 2002–2012
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- John Burrows 1943–1944
- Mike Burrows 2024–2025
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- Moe Burtschy 1950–1956
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- Maurice Busby 1922–1922
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- Steve Busby 1972–1980
- Ed Busch 1943–1945
- Michael Busch 2023–2025
- Mike Busch 1995–1996
- Brian Buscher 2007–2009
- Don Buschhorn 1965–1965
- Matt Buschmann 2016–2016
- Alan Busenitz 2017–2024
- Bullet Joe Bush 1912–1928
- Dave Bush 2004–2013
- Donie Bush 1908–1923
- Guy Bush 1923–1945
- Homer Bush 1997–2004
- Ky Bush 2024–2024
- Matt Bush 2016–2023
- Randy Bush 1982–1993
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- Frank Bushey 1927–1930
- Chris Bushing 1993–1993
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- Joe Buskey 1926–1926
- Mike Buskey 1977–1977
- Tom Buskey 1973–1980
- Nick Buss 2013–2016
- Ray Busse 1971–1974
- Luis Bustamante 1905–1913
- Herbert Buster 1943–1943
- Hank Butcher 1911–1912
- John Butcher 1980–1986
- Max Butcher 1936–1945
- Mike Butcher 1992–1995
- Drew Butera 2010–2021
- Sal Butera 1980–1988
- Ed Butka 1943–1944
- Bill Butland 1940–1947
- Adam Butler 1998–1998
- Art Butler 1911–1916
- Bill Butler 1969–1977
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- Billy Butler 2007–2016
- Brent Butler 2001–2003
- Brett Butler 1981–1997
- Cecil Butler 1962–1964
- Charlie Butler 1933–1933
- Dan Butler 2014–2018
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- Ed Butler 1943–1945
- Eddie Butler 2014–2018
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- Frank Butler 1895–1895
- Ike Butler 1902–1902
- Joey Butler 2013–2015
- John Butler 1901–1907
- Johnny Butler 1926–1929
- Josh Butler 2009–2009
- Keith Butler 2013–2014
- Kid Butler 1907–1907
- Lawrence Butler 2023–2025
- Rich Butler 1997–1999
- Rob Butler 1993–1999
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- Jose Butto 2022–2025
- Ty Buttrey 2018–2020
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- Byron Buxton 2015–2025
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- Jim Byrd 1993–1993
- Marlon Byrd 2002–2016
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- Paul Byrd 1995–2009
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- Tim Byrdak 1998–2013
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- Jerry Byrne 1929–1929
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- Eric Byrnes 2000–2010
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- Milt Byrnes 1943–1945
- Cyril Byron 1946–1946
- Marty Bystrom 1980–1985
- Brian Van Belle 2025–2025
- John Van Benschoten 2004–2008
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- Deacon Van Buren 1904–1904
- Jermaine Van Buren 2005–2006
- Ty Van Burkleo 1993–1994
- Ed Vande Berg 1982–1988