Players — R
- Dane De La Rosa 2011–2014
- Eury De La Rosa 2013–2014
- Jorge De La Rosa 2004–2018
- Rubby De La Rosa 2011–2017
- Enerio Del Rosario 2010–2012
- Brian Raabe 1995–1997
- John Rabb 1982–1988
- Joe Rabbitt 1922–1922
- Charlie Rabe 1957–1958
- Josh Rabe 2006–2007
- Mike Rabelo 2006–2008
- Ryan Raburn 2004–2017
- Steve Rachunok 1940–1940
- Marv Rackley 1947–1950
- Mike Raczka 1992–1992
- Dick Radatz 1962–1969
- George Radbourn 1883–1883
- Old Hoss Radbourn 1880–1891
- Alex Radcliff 1926–1946
- John Radcliff 1871–1875
- Rip Radcliff 1934–1943
- Ted Radcliffe 1928–1946
- Roy Radebaugh 1911–1911
- Dave Rader 1971–1980
- Don Rader 1913–1921
- Doug Rader 1967–1977
- Drew Rader 1921–1921
- Paul Radford 1883–1894
- Scott Radinsky 1990–2001
- Brad Radke 1995–2006
- Rob Radlosky 1999–1999
- Ryan Radmanovich 1998–1998
- Jack Radtke 1936–1936
- Hal Raether 1954–1957
- Ceddanne Rafaela 2023–2025
- Ken Raffensberger 1939–1954
- Al Raffo 1969–1969
- Jack Rafter 1904–1904
- Tom Raftery 1909–1909
- Arthur Ragan 1903–1903
- Pat Ragan 1909–1923
- Cole Ragans 2022–2025
- Brady Raggio 1997–2003
- Frank Ragland 1932–1933
- Herlen Ragland 1920–1921
- Tom Ragland 1971–1973
- Carson Ragsdale 2025–2025
- Eric Raich 1975–1976
- Steve Rain 1999–2000
- Larry Raines 1957–1958
- Tim Raines 2001–2004
- Tim Raines 1979–2002
- Chuck Rainey 1979–1984
- John Rainey 1887–1890
- Tanner Rainey 2018–2025
- Dave Rajsich 1978–1980
- Gary Rajsich 1982–1985
- Aaron Rakers 2004–2007
- Jason Rakers 1998–2000
- Ed Rakow 1960–1967
- Cal Raleigh 2021–2025
- John Raleigh 1909–1910
- Brooks Raley 2012–2025
- Luke Raley 2021–2025
- Doc Ralston 1910–1910
- Bob Ramazzotti 1946–1953
- Pep Rambert 1939–1940
- Pete Rambo 1926–1926
- Alex Ramirez 1998–2000
- Alexei Ramirez 2008–2016
- Allan Ramirez 1983–1983
- Aramis Ramirez 1998–2015
- Carlos Ramirez 2017–2018
- Edwar Ramirez 2007–2010
- Elizardo Ramirez 2004–2008
- Elvin Ramirez 2012–2012
- Emmanuel Ramirez 2024–2024
- Erasmo Ramirez 2003–2007
- Erasmo Ramirez 2012–2025
- Hanley Ramirez 2005–2019
- Harold Ramirez 2019–2024
- Hector Ramirez 1999–2000
- Horacio Ramirez 2003–2011
- J. C. Ramirez 2013–2019
- Jose Ramirez 2014–2018
- Jose Ramirez 2013–2025
- Julio Ramirez 1999–2005
- Manny Ramirez 1993–2011
- Mario Ramirez 1980–1985
- Max Ramirez 2008–2010
- Milt Ramirez 1970–1979
- Neil Ramirez 2014–2019
- Nick Ramirez 2019–2024
- Noe Ramirez 2015–2022
- Orlando Ramirez 1974–1979
- Rafael Ramirez 1980–1992
- Ramon Ramirez 2008–2009
- Ramon Ramirez 2006–2014
- Roberto Ramirez 1998–1999
- Roel Ramirez 2020–2021
- Santiago Ramirez 2006–2006
- Wilkin Ramirez 2009–2013
- Yefry Ramirez 2018–2021
- Yohan Ramirez 2020–2025
- AJ Ramos 2012–2021
- Bobby Ramos 1978–1984
- Bryan Ramos 2024–2025
- Cesar Ramos 2009–2016
- Cheo Ramos 1929–1929
- Chucho Ramos 1944–1944
- Domingo Ramos 1978–1990
- Edgar Ramos 1997–1997
- Edubray Ramos 2016–2019
- Ezequiel Ramos 1907–1907
- Heliot Ramos 2022–2025
- Henry Ramos 2021–2023
- John Ramos 1991–1991
- Ken Ramos 1997–1997
- Mario Ramos 2003–2003
- Pedro Ramos 1955–1970
- Wilson Ramos 2010–2021
- Robert Ramsay 1999–2000
- Willie Ramsdell 1947–1952
- Bill Ramsey 1945–1945
- Fernando Ramsey 1992–1992
- Lane Ramsey 2023–2023
- Laymon Ramsey 1947–1947
- Matt Ramsey 2019–2019
- Mike Ramsey 1987–1987
- Mike Ramsey 1978–1985
- Toad Ramsey 1885–1890
- Agustín Ramírez 2025–2025
- Ramiro Ramírez 1916–1932
- Anthony Ranaudo 2014–2016
- Dick Rand 1953–1957
- Joe Randa 1995–2006
- Bob Randall 1976–1980
- Newt Randall 1907–1907
- Sap Randall 1988–1988
- Scott Randall 2003–2003
- William Randall 1943–1943
- Lenny Randle 1971–1982
- Steve Randolph 2003–2007
- Willie Randolph 1975–1992
- Merritt Ranew 1962–1969
- Ribs Raney 1949–1950
- Alan Rangel 2025–2025
- Cody Ransom 2001–2013
- Jeff Ransom 1981–1983
- Joe Ranson 1926–1926
- Clay Rapada 2007–2013
- Earl Rapp 1949–1952
- Goldie Rapp 1921–1923
- Pat Rapp 1992–2001
- Nick Raquet 2025–2025
- Bill Rariden 1909–1920
- Vic Raschi 1946–1955
- Taylor Rashi 2025–2025
- Colby Rasmus 2009–2018
- Cory Rasmus 2013–2016
- Dennis Rasmussen 1983–1995
- Drew Rasmussen 2020–2025
- Eric Rasmussen 1975–1983
- Hans Rasmussen 1915–1915
- Rob Rasmussen 2014–2015
- Darrell Rasner 2005–2008
- Fred Rath 1968–1969
- Fred Rath 1998–1998
- Gary Rath 1998–1999
- Morrie Rath 1909–1920
- Gene Ratliff 1965–1965
- Jon Ratliff 2000–2000
- Paul Ratliff 1963–1972
- Steve Ratzer 1980–1981
- Doug Rau 1972–1981
- Tommy Raub 1903–1906
- Bob Rauch 1972–1972
- Jon Rauch 2002–2013
- Bob Raudman 1966–1967
- Lance Rautzhan 1977–1979
- John Rave 2025–2025
- Rangel Ravelo 2019–2020
- Josh Ravin 2015–2018
- Shane Rawley 1978–1989
- Johnny Rawlings 1914–1926
- Carl Ray 1915–1916
- Chris Ray 2005–2011
- Corey Ray 2021–2021
- Farmer Ray 1910–1910
- Frank Ray 1932–1932
- Irv Ray 1888–1891
- Jim Ray 1965–1974
- Johnny Ray 1981–1990
- Johnny Ray 1937–1945
- Ken Ray 1999–2006
- Larry Ray 1982–1982
- Otto Ray 1920–1924
- Robbie Ray 2014–2025
- Robert Ray 2009–2010
- Curt Raydon 1958–1958
- Floyd Rayford 1980–1987
- Fred Raymer 1901–1905
- Bugs Raymond 1904–1911
- Claude Raymond 1959–1971
- Harry Raymond 1888–1892
- Lou Raymond 1919–1919
- John Raynor 2010–2010
- Barry Raziano 1973–1974
- Colin Rea 2015–2025
- Al Reach 1871–1875
- Bob Reach 1872–1873
- Raudy Read 2017–2019
- Randy Ready 1983–1995
- J. T. Realmuto 2014–2025
- Britt Reames 2000–2006
- Leroy Reams 1969–1969
- Jeff Reardon 1979–1994
- Jeremiah Reardon 1886–1886
- Phil Reardon 1906–1906
- Chris Rearick 2015–2015
- Al Reavis 1920–1921
- Art Rebel 1938–1945
- Frank Reberger 1968–1972
- Jeff Reboulet 1992–2003
- John Reccius 1882–1883
- Phil Reccius 1882–1890
- Anthony Recker 2011–2017
- Connie Rector 1920–1944
- recto01 1927–1927
- Eugene Redd 1922–1923
- Ulysses Redd 1940–1941
- Josh Reddick 2009–2021
- Dick Redding 1911–1927
- Phil Redding 1912–1913
- Tim Redding 2001–2009
- Bob Reddon 1924–1924
- Johnny Reder 1932–1932
- Buck Redfern 1928–1929
- Pete Redfern 1976–1982
- Joe Redfield 1988–1991
- Mark Redman 1999–2008
- Prentice Redman 2003–2003
- Tike Redman 2000–2007
- Glenn Redmon 1974–1974
- Billy Redmond 1875–1878
- Harry Redmond 1909–1909
- Jack Redmond 1935–1935
- Mike Redmond 1998–2010
- Todd Redmond 2012–2015
- Wayne Redmond 1965–1969
- Gary Redus 1982–1994
- Wilson Redus 1924–1940
- Bert Redwine 1926–1926
- Bob Reece 1978–1978
- A. J. Reed 2016–2019
- Addison Reed 2011–2018
- Allen Reed 1940–1940
- Andrew Reed 1919–1919
- Billy Reed 1952–1952
- Bob Reed 1969–1970
- Chris Reed 2015–2015
- Cody Reed 2016–2021
- Darren Reed 1990–1992
- Eric Reed 2006–2007
- Evan Reed 2013–2014
- Howie Reed 1958–1971
- Jack Reed 1961–1963
- Jake Reed 2021–2023
- Jeff Reed 1984–2000
- Jeremy Reed 2004–2011
- Jerry Reed 1981–1990
- Jody Reed 1987–1997
- Johnny Reed 1937–1939
- Keith Reed 2005–2005
- Michael Reed 2015–2019
- Milt Reed 1911–1915
- Rick Reed 1988–2003
- Ron Reed 1966–1984
- Steve Reed 1992–2005
- Ted Reed 1915–1915
- Bill Reeder 1949–1949
- Icicle Reeder 1884–1884
- Nick Reeder 1891–1891
- Jimmy Reel 1923–1923
- Stan Rees 1918–1918
- Andy Reese 1927–1930
- Jimmie Reese 1930–1932
- Jimmy Reese 1934–1940
- John Reese 1918–1931
- Kevin Reese 2005–2006
- Pee Wee Reese 1940–1958
- Pokey Reese 1997–2004
- Rich Reese 1964–1973
- Jakson Reetz 2021–2024
- Bobby Reeves 1926–1931
- Donald Reeves 1938–1941
- Rob Refsnyder 2015–2025
- Pedro Regalado 1945–1945
- Rudy Regalado 1954–1956
- Bill Regan 1926–1931
- Joe Regan 1898–1898
- Mike Regan 1917–1919
- Phil Regan 1960–1972
- Nick Regilio 2004–2005
- Steven Register 2008–2009
- Tony Rego 1924–1925
- Wally Rehg 1912–1919
- Frank Reiber 1933–1936
- Herman Reich 1949–1949
- Rick Reichardt 1964–1974
- Dan Reichert 1999–2003
- Dick Reichle 1922–1923
- Ambrose Reid 1921–1932
- Billy Reid 1883–1884
- Earl Reid 1946–1946
- Hugh Reid 1874–1874
- Jessie Reid 1987–1988
- Ryan Reid 2013–2013
- Scott Reid 1969–1970
- Sean Reid-Foley 2018–2024
- Bill Reidy 1896–1904
- Charlie Reilley 1879–1884
- Duke Reilley 1909–1909
- Arch Reilly 1917–1917
- Barney Reilly 1909–1909
- Charlie Reilly 1889–1897
- Hal Reilly 1919–1919
- Jim Reilly 1885–1885
- John Reilly 1880–1891
- Josh Reilly 1896–1896
- Tom Reilly 1908–1914
- Kevin Reimer 1988–1993
- Nolan Reimold 2009–2016
- Mike Reinbach 1974–1974
- Wally Reinecker 1915–1915
- Chad Reineke 2008–2011
- Art Reinhart 1919–1928
- Jack Reinheimer 2017–2018
- Art Reinholz 1928–1928
- Zac Reininger 2017–2019
- Charlie Reipschlager 1883–1887
- Bobby Reis 1931–1938
- Jack Reis 1911–1911
- Laurie Reis 1877–1878
- Tommy Reis 1938–1938
- Pete Reiser 1940–1952
- Bugs Reisigl 1911–1911
- Charlie Reising 1884–1884
- Doc Reisling 1904–1910
- Al Reiss 1932–1932
- Brian Reith 2001–2004
- Chris Reitsma 2001–2007
- Henry Reitz 1893–1899
- Ken Reitz 1972–1982
- Bryan Rekar 1995–2002
- Zach Reks 2021–2022
- Desi Relaford 1996–2007
- Butch Rementer 1904–1904
- Zach Remillard 2023–2024
- Mike Remlinger 1991–2006
- Win Remmerswaal 1979–1980
- Alex Remneas 1912–1915
- Jack Remsen 1872–1884
- Jerry Remy 1975–1984
- Tony Renda 2016–2018
- Anthony Rendon 2013–2024
- Erwin Renfer 1913–1913
- Chico Renfroe 1945–1948
- Hunter Renfroe 2016–2025
- Laddie Renfroe 1991–1991
- Marshall Renfroe 1959–1959
- Luis Rengifo 2019–2025
- Rick Renick 1968–1972
- Hal Reniff 1961–1967
- Jim Reninger 1938–1939
- Steve Renko 1969–1983
- Bill Renna 1953–1959
- Tony Rensa 1930–1939
- Edgar Renteria 1996–2011
- Rich Renteria 1986–1994
- Bob Repass 1939–1942
- Jason Repko 2005–2012
- Andy Replogle 1978–1979
- Roger Repoz 1964–1972
- Rip Repulski 1953–1961
- Xavier Rescigno 1943–1945
- Chris Resop 2005–2013
- Larry Ressler 1875–1875
- Dino Restelli 1949–1951
- Michael Restovich 2002–2007
- Merv Rettenmund 1968–1980
- George Rettger 1891–1892
- Otto Rettig 1922–1922
- Ken Retzer 1961–1964
- Ed Reulbach 1905–1917
- Paul Reuschel 1975–1979
- Rick Reuschel 1972–1991
- Jerry Reuss 1969–1990
- Todd Revenig 1992–1992
- Ben Revere 2010–2017
- Dave Revering 1978–1982
- Henry Reville 1874–1874
- William Rexter 1875–1875
- Alberto Reyes 1995–2008
- Alex Reyes 2016–2021
- Anthony Reyes 2005–2009
- Argenis Reyes 2008–2009
- Carlos Reyes 1994–2003
- Dennys Reyes 1997–2011
- Denyi Reyes 2022–2023
- Franmil Reyes 2018–2023
- Gerardo Reyes 2019–2024
- Gil Reyes 1983–1991
- Jesus Reyes 2018–2018
- Jo-Jo Reyes 2007–2016
- Jose Reyes 2003–2018
- Jose Reyes 2006–2006
- Nap Reyes 1943–1950
- Pablo Reyes 2018–2025
- Rene Reyes 2003–2004
- Victor Reyes 2018–2022
- Allie Reynolds 1942–1954
- Archie Reynolds 1968–1972
- Bill Reynolds 1948–1948
- Bill Reynolds 1913–1914
- Bob Reynolds 1969–1975
- Bryan Reynolds 2019–2025
- Carl Reynolds 1927–1939
- Charlie Reynolds 1889–1889
- Craig Reynolds 1975–1989
- Danny Reynolds 1945–1945
- Dick Reynolds 1942–1942
- Don Reynolds 1978–1979
- Greg Reynolds 2008–2013
- Harold Reynolds 1983–1994
- Jimmy Reynolds 1939–1946
- Joe Reynolds 1935–1935
- Ken Reynolds 1970–1976
- Louis Reynolds 1897–1899
- Mark Reynolds 2007–2019
- Matt Reynolds 2010–2016
- Matt Reynolds 2016–2023
- R. J. Reynolds 1983–1990
- Ronn Reynolds 1982–1990
- Ross Reynolds 1914–1915
- Sean Reynolds 2024–2025
- Shane Reynolds 1992–2004
- Thomas Reynolds 1882–1882
- Tommie Reynolds 1963–1972
- Armando Reynoso 1991–2002
- Jacob Rhame 2017–2019
- Bobby Rhawn 1947–1949
- Cy Rheam 1914–1915
- John Rheinecker 2006–2007
- Flint Rhem 1924–1936
- Billy Rhiel 1929–1933
- Billy Rhines 1890–1899
- Bob Rhoads 1902–1909
- Rick Rhoden 1974–1989
- Army Rhodes 1940–1942
- Arthur Rhodes 1991–2011
- Charlie Rhodes 1906–1909
- Dusty Rhodes 1932–1932
- Dusty Rhodes 1952–1959
- Gordon Rhodes 1929–1936
- Harry Rhodes 1946–1948
- Karl Rhodes 1990–1995
- Kevin Rhomberg 1982–1984
- Douglas Rhone 1940–1940
- Will Rhymes 2010–2012
- Hal Rhyne 1926–1933
- Orlando Ribalta 2024–2025
- Dennis Ribant 1964–1969
- Frank Riccelli 1976–1979
- Chuck Ricci 1995–1995
- Ben Rice 2024–2025
- Bob Rice 1926–1926
- Del Rice 1945–1961
- Hal Rice 1948–1954
- Harry Rice 1923–1933
- Jim Rice 1974–1989
- Len Rice 1944–1945
- Pat Rice 1991–1991
- Sam Rice 1915–1934
- Scott Rice 2013–2014
- Woody Rich 1939–1944
- Danny Richar 2007–2009
- Chris Richard 2000–2009
- Clayton Richard 2008–2019
- J. R. Richard 1971–1980
- Lee Richard 1971–1976
- Duane Richards 1960–1960
- Fred Richards 1951–1951
- Garrett Richards 2011–2022
- Gene Richards 1977–1984
- Paul Richards 1932–1946
- Rusty Richards 1989–1990
- Trevor Richards 2018–2025
- Antoan Richardson 2011–2014
- Bill Richardson 1901–1901
- Bobby Richardson 1955–1966
- Danny Richardson 1884–1894
- Dustin Richardson 2009–2010
- Earl Richardson 1943–1943
- Gene Richardson 1947–1948
- George Richardson 1900–1903
- Glen Richardson 1946–1947
- Gordie Richardson 1964–1966
- Hardy Richardson 1879–1892
- Henry Richardson 1938–1938
- Jack Richardson 1915–1916
- Jeff Richardson 1990–1990
- Jeff Richardson 1989–1993
- John Richardson 1922–1924
- Ken Richardson 1942–1946
- Kevin Richardson 2009–2009
- Lyon Richardson 2023–2025
- Nolen Richardson 1929–1939
- Talmadge Richardson 1921–1923
- Tom Richardson 1917–1917
- Tom Richardson 1932–1934
- Vidal Richardson 1946–1946
- richa01 1884–1884
- Mike Richardt 1980–1984
- Lance Richbourg 1921–1932
- Lefty Richburg 1939–1939
- Pete Richert 1962–1974
- Lew Richie 1906–1913
- Rob Richie 1989–1989
- Beryl Richmond 1933–1934
- Don Richmond 1941–1951
- John Richmond 1875–1885
- Lee Richmond 1879–1886
- Ray Richmond 1920–1921
- Scott Richmond 2008–2012
- Al Richter 1951–1953
- John Richter 1898–1898
- Reggie Richter 1911–1911
- Joey Rickard 2016–2020
- Joe Rickert 1898–1901
- Marv Rickert 1942–1950
- Dave Ricketts 1963–1970
- Dick Ricketts 1959–1959
- Branch Rickey 1905–1914
- Chris Rickley 1884–1884
- Bill Ricks 1944–1948
- Curtis Ricks 1922–1923
- John Ricks 1891–1894
- Art Rico 1916–1917
- Fred Rico 1969–1969
- Harry Riconda 1923–1930
- Vernon Riddick 1939–1941
- Elmer Riddle 1939–1949
- JT Riddle 2017–2022
- John Riddle 1889–1890
- Johnny Riddle 1930–1948
- Marshall Riddle 1937–1943
- Denny Riddleberger 1970–1972
- Dorsey Riddlemoser 1899–1899
- ridge01 1908–1908
- Buck Ridgley 1920–1931
- Jack Ridgway 1914–1914
- Jeff Ridgway 2007–2008
- Stephen Ridings 2021–2021
- Jack Ridley 1930–1933
- Steve Ridzik 1950–1966
- Hank Riebe 1942–1949
- John Riedling 2000–2005
- C. J. Riefenhauser 2014–2015
- Elmer Rieger 1910–1910
- Andre Rienzo 2013–2015
- Nikco Riesgo 1991–1991
- Manuel Rigal 1922–1927
- Brad Rigby 1997–2000
- Paul Rigdon 2000–2001
- Jerrod Riggan 2000–2003
- Shawn Riggans 2006–2009
- Joe Riggert 1911–1919
- Bill Riggins 1920–1935
- Adam Riggs 1997–2004
- Lew Riggs 1934–1946
- Dave Righetti 1979–1995
- Ron Rightnowar 1995–1995
- Bill Rigney 1946–1953
- Johnny Rigney 1937–1947
- Topper Rigney 1922–1927
- Jose Rijo 1984–2002
- Culley Rikard 1941–1947
- Ed Rile 1920–1931
- Ernie Riles 1985–1993
- Austin Riley 2019–2025
- Billy Riley 1875–1879
- George Riley 1979–1986
- Jack Riley 1945–1945
- Jim Riley 1910–1910
- Jim Riley 1921–1923
- Lee Riley 1944–1944
- Matt Riley 1999–2005
- Andy Rincon 1980–1982
- Juan Rincon 2001–2010
- Ricardo Rincon 1997–2008
- Jeff Rineer 1979–1979
- Jimmy Ring 1917–1928
- Royce Ring 2005–2010
- Frank Ringo 1883–1886
- Bob Rinker 1950–1950
- Alex Rios 2004–2015
- Armando Rios 1998–2003
- Danny Rios 1997–1998
- Edwin Rios 2019–2024
- Juan Rios 1969–1969
- Yacksel Rios 2017–2023
- Billy Ripken 1987–1998
- Cal Ripken 1981–2001
- Allen Ripley 1978–1982
- Walt Ripley 1935–1935
- Ray Rippelmeyer 1962–1962
- Charlie Ripple 1944–1946
- Jimmy Ripple 1936–1943
- Swede Risberg 1917–1920
- Pop Rising 1905–1905
- David Riske 1999–2010
- Bill Risley 1992–1998
- Claude Ritchey 1897–1909
- John Ritchey 1947–1947
- Jay Ritchie 1964–1968
- Todd Ritchie 1997–2004
- Wally Ritchie 1987–1992
- ritch01 1921–1921
- Charlie Ritter 1885–1885
- Floyd Ritter 1890–1890
- Hank Ritter 1912–1916
- Lew Ritter 1902–1908
- Reggie Ritter 1986–1987
- Ryan Ritter 2025–2025
- Whitey Ritterson 1876–1876
- Jim Rittwage 1970–1970
- Jim Ritz 1894–1894
- Kevin Ritz 1989–1998
- Alfonso Rivas 2021–2023
- Francisco Rivas 1917–1917
- Leo Rivas 2024–2025
- Luis Rivas 2000–2008
- Webster Rivas 2021–2021
- Ben Rivera 1992–1994
- Bombo Rivera 1975–1982
- Carlos Rivera 2003–2004
- Charlie Rivera 1939–1944
- Emmanuel Rivera 2021–2025
- German Rivera 1983–1985
- Jim Rivera 1952–1961
- Juan Rivera 2001–2012
- Luis Rivera 1986–1998
- Luis Rivera 2000–2000
- Mariano Rivera 1995–2013
- Mike Rivera 2001–2011
- Rene Rivera 2004–2021
- Roberto Rivera 1995–1999
- Ruben Rivera 1995–2003
- Saul Rivera 2006–2010
- T. J. Rivera 2016–2017
- Yadiel Rivera 2015–2020
- Carlos Rivero 2014–2014
- Sebastian Rivero 2021–2025
- Dewey Rivers 1926–1933
- Mickey Rivers 1970–1984
- Tink Riviere 1921–1925
- Eppa Rixey 1912–1933
- Anthony Rizzo 2011–2024
- Johnny Rizzo 1938–1942
- Todd Rizzo 1998–1999
- Phil Rizzuto 1941–1956
- Sendy Rleal 2006–2006
- Christian Roa 2025–2025
- Joe Roa 1995–2004
- Donn Roach 2014–2016
- Jason Roach 2003–2003
- John Roach 1887–1887
- Mel Roach 1953–1962
- Mike Roach 1899–1899
- Roxey Roach 1910–1915
- Skel Roach 1899–1899
- Tanner Roark 2013–2021
- Mike Roarke 1961–1964
- Fred Roat 1890–1892
- Bruce Robbins 1979–1980
- Jake Robbins 2004–2004
- Slim Robbins 1926–1926
- Tony Robello 1933–1934
- Bert Roberge 1979–1986
- Skippy Roberge 1941–1946
- Chris Roberson 2006–2007
- Kevin Roberson 1993–1996
- Sid Roberson 1995–1995
- Daniel Robert 2024–2025
- Luis Robert 2020–2025
- Bip Roberts 1986–1998
- Brian Roberts 2001–2014
- Curtis Roberts 1947–1956
- Dale Roberts 1967–1967
- Dave Roberts 1999–2008
- Dave Roberts 1972–1982
- Dave Roberts 1962–1966
- Dave Roberts 1969–1981
- Elihu Roberts 1918–1920
- Ethan Roberts 2022–2025
- Grant Roberts 2000–2004
- Jim Roberts 1924–1925
- Kenny Roberts 2015–2015
- Leo Roberts 1925–1925
- Leon Roberts 1974–1984
- Rags Roberts 1922–1928
- Ray Roberts 1919–1919
- Red Roberts 1943–1943
- Robin Roberts 1948–1966
- Roy Roberts 1918–1934
- Ryan Roberts 2006–2014
- Skipper Roberts 1913–1914
- Specs Roberts 1937–1945
- Willis Roberts 1999–2004
- rober01 1920–1920
- rober02 1931–1931
- Andre Robertson 1981–1985
- Bob Robertson 1967–1979
- Charlie Robertson 1919–1928
- Connor Robertson 2007–2008
- Dan Robertson 2014–2017
- Daniel Robertson 2017–2021
- Daryl Robertson 1962–1962
- Dave Robertson 1912–1922
- David Robertson 2008–2025
- Dick Robertson 1913–1919
- Don Robertson 1954–1954
- Gene Robertson 1919–1930
- Jeriome Robertson 2002–2004
- Jerry Robertson 1969–1970
- Jim Robertson 1954–1955
- Kramer Robertson 2022–2022
- Mike Robertson 1996–1998
- Nate Robertson 2002–2010
- Nick Robertson 2023–2024
- Rich Robertson 1966–1971
- Rich Robertson 1993–1998
- Sherry Robertson 1940–1952
- Tyler Robertson 2012–2013
- Will Robertson 2025–2025
- Billy Jo Robidoux 1985–1990
- Aaron Robinson 1943–1951
- Al Robinson 1905–1912
- Bill Robinson 1966–1983
- Bobby Robinson 1925–1940
- Booker Robinson 1945–1945
- Brooks Robinson 1955–1977
- Bruce Robinson 1978–1980
- Charley Robinson 1939–1939
- Charlie Robinson 1884–1885
- Chris Robinson 2013–2013
- Chuckie Robinson 2022–2025
- Clint Robinson 2012–2016
- Craig Robinson 1972–1977
- Dave Robinson 1970–1971
- Derrick Robinson 2013–2013
- Dewey Robinson 1979–1981
- Don Robinson 1978–1992
- Drew Robinson 2017–2019
- Earl Robinson 1958–1964
- Eddie Robinson 1942–1957
- Edward Robinson 1932–1932
- Floyd Robinson 1960–1968
- Frank Robinson 1956–1976
- Frazier Robinson 1940–1948
- Fred Robinson 1884–1884
- George Robinson 1918–1923
- Ginney Robinson 1901–1910
- Hank Robinson 1911–1918
- Harold Robinson 1940–1940
- Humberto Robinson 1955–1960
- Jack Robinson 1902–1902
- Jack Robinson 1949–1949
- Jackie Robinson 1945–1956
- Jacob Robinson 1946–1947
- James Robinson 1898–1906
- Jeff Robinson 1987–1992
- Jeff Robinson 1984–1992
- Johnny Robinson 1930–1931
- Ken Robinson 1995–1997
- Kerry Robinson 1998–2006
- Lefty Robinson 1923–1932
- Neil Robinson 1934–1948
- Newt Robinson 1925–1931
- Norman Robinson 1940–1948
- Rabbit Robinson 1903–1910
- Ray Robinson 1938–1947
- Ron Robinson 1984–1992
- Shane Robinson 2009–2018
- Skin Down Robinson 1938–1943
- Trayvon Robinson 2011–2012
- Val Robinson 1872–1872
- Wilbert Robinson 1886–1902
- William Robinson 1882–1892
- robin01 1944–1944
- robin02 1943–1943
- robin03 1922–1922
- robin04 1926–1926
- Chick Robitaille 1904–1905
- Hansel Robles 2015–2022
- Mauricio Robles 2013–2013
- Oscar Robles 2005–2007
- Rafael Robles 1969–1972
- Sergio Robles 1972–1976
- Victor Robles 2017–2025
- Jacob Robson 2021–2021
- Tom Robson 1974–1975
- Adam Rocap 1875–1875
- Brayan Rocchio 2023–2025
- Mickey Rocco 1943–1946
- Armando Roche 1945–1945
- Jack Roche 1914–1917
- Ben Rochefort 1914–1914
- Lou Rochelli 1944–1944
- Mike Rochford 1988–1990
- Joe Rock 2025–2025
- Les Rock 1936–1936
- Ike Rockenfield 1905–1906
- John Rocker 1998–2003
- Kumar Rocker 2024–2025
- Pat Rockett 1976–1978
- Rich Rodas 1983–1984
- Alan Roden 2025–2025
- Andre Rodgers 1957–1967
- Bill Rodgers 1915–1916
- Bill Rodgers 1944–1945
- Brady Rodgers 2016–2019
- Brendan Rodgers 2019–2025
- Buck Rodgers 1961–1969
- Eric Rodin 1954–1954
- Fernando Rodney 2002–2019
- Carlos Rodon 2015–2025
- Alex Rodriguez 1994–2016
- Aneury Rodriguez 2011–2012
- Aurelio Rodriguez 1967–1983
- Bradgley Rodriguez 2025–2025
- Carlos Rodriguez 1991–1995
- Carlos Rodriguez 2024–2025
- Chris Rodriguez 2021–2021
- Dereck Rodriguez 2018–2023
- Eddy Rodriguez 2012–2012
- Eddy Rodriguez 2004–2006
- Eduardo Rodriguez 1973–1979
- Eduardo Rodriguez 2015–2025
- Edwin Rodriguez 1982–1985
- Ellie Rodriguez 1968–1976
- Elvin Rodriguez 2022–2025
- Felix Rodriguez 1995–2006
- Fernando Rodriguez 2009–2016
- Francisco Rodriguez 2002–2017
- Francisco Rodriguez 2010–2011
- Frankie Rodriguez 1995–2001
- Freddy Rodriguez 1958–1959
- Grayson Rodriguez 2023–2024
- Guilder Rodriguez 2014–2014
- Guillermo Rodriguez 2007–2009
- Henry Rodriguez 2009–2014
- Henry Rodriguez 2012–2013
- Henry Rodriguez 1992–2002
- Ivan Rodriguez 1991–2011
- Jefry Rodriguez 2018–2021
- Joely Rodriguez 2016–2024
- John Rodriguez 2005–2006
- Jose Rodriguez 2000–2002
- Jose Rodriguez 1916–1918
- Jose Rodriguez 2019–2023
- Josh Rodriguez 2011–2011
- José Rodriguez 2023–2023
- Julio Rodriguez 2022–2025
- Liu Rodriguez 1999–1999
- Luis Rodriguez 2005–2011
- Manuel Rodriguez 2021–2025
- Nerio Rodriguez 1996–2002
- Nivaldo Rodriguez 2020–2021
- Paco Rodriguez 2012–2015
- Rafael Rodriguez 2009–2010
- Ricardo Rodriguez 2017–2018
- Ricardo Rodriguez 2002–2005
- Rich Rodriguez 1990–2003
- Richard Rodriguez 2017–2021
- Rick Rodriguez 1986–1990
- Roberto Rodriguez 1967–1970
- Ronny Rodriguez 2018–2019
- Rosario Rodriguez 1989–1991
- Ruben Rodriguez 1986–1988
- Sean Rodriguez 2008–2020
- Steve Rodriguez 1995–1995
- Tony Rodriguez 1996–1996
- Vic Rodriguez 1984–1989
- Wandy Rodriguez 2005–2015
- Wilfredo Rodriguez 2001–2001
- Wilking Rodriguez 2014–2014
- Yerry Rodriguez 2022–2024
- Yorman Rodriguez 2014–2014
- Antonio Rodríguez 1939–1939
- Bernardo Rodríguez 1927–1927
- Bienvenido Rodríguez 1948–1948
- Conrado Rodríguez 1909–1909
- Conrado Rodríguez 1928–1928
- Endy Rodríguez 2023–2025
- Héctor Rodríguez 1944–1952
- Johnathan Rodríguez 2024–2025
- José Agustín Rodríguez 1922–1922
- Manuel Rodríguez 1906–1906
- Randy Rodríguez 2024–2025
- Vicente Rodríguez 1913–1923
- Yariel Rodríguez 2024–2025
- Chaz Roe 2013–2021
- Clay Roe 1923–1923
- Preacher Roe 1938–1954
- Ed Roebuck 1955–1966
- Gary Roenicke 1976–1988
- Josh Roenicke 2008–2013
- Ron Roenicke 1981–1988
- Mike Roesler 1989–1990
- Oscar Roettger 1923–1932
- Wally Roettger 1927–1934
- Ed Roetz 1929–1929
- Joe Rogalski 1938–1938
- Bullet Rogan 1920–1938
- Billy Rogell 1925–1940
- Brian Rogers 2006–2007
- Buck Rogers 1935–1935
- Eddie Rogers 2002–2006
- Emmett Rogers 1890–1890
- Esmil Rogers 2009–2015
- Fraley Rogers 1872–1873
- Jake Rogers 2019–2025
- Jason Rogers 2014–2016
- Jay Rogers 1914–1914
- Jim Rogers 1896–1897
- Jimmy Rogers 1995–1995
- Josh Rogers 2018–2024
- Kenny Rogers 1989–2008
- Kevin Rogers 1992–1994
- Lee Rogers 1938–1938
- Mark Rogers 2010–2012
- Nat Rogers 1923–1945
- Packy Rogers 1938–1938
- Steve Rogers 1973–1985
- Taylor Rogers 2016–2025
- Tom Rogers 1917–1921
- Trevor Rogers 2020–2025
- Tyler Rogers 2019–2025
- Clint Rogge 1915–1921
- Garry Roggenburk 1963–1969
- Mike Rogodzinski 1973–1975
- Saul Rogovin 1949–1957
- Dave Rohde 1990–1992
- George Rohe 1901–1907
- Ryan Rohlinger 2008–2011
- Dan Rohn 1983–1986
- Billy Rohr 1967–1968
- Les Rohr 1967–1969
- Dan Rohrmeier 1997–1997
- Ray Rohwer 1921–1922
- Tony Roig 1953–1956
- Cookie Rojas 1962–1977
- Johan Rojas 2023–2025
- Jose Rojas 2021–2022
- Josh Rojas 2019–2025
- Mel Rojas 1990–1999
- Miguel Rojas 2014–2025
- Minnie Rojas 1966–1968
- Ramón Rojas 1932–1932
- Stan Rojek 1942–1952
- Julio Rojo 1916–1930
- Jim Roland 1962–1972
- Scott Rolen 1996–2012
- Red Rolfe 1931–1942
- Nate Rolison 2000–2000
- Ryan Rolison 2025–2025
- Chris Roller 2024–2024
- Carl Rolling 1920–1920
- Ray Rolling 1912–1912
- Red Rollings 1927–1930
- David Rollins 2015–2016
- Jimmy Rollins 2000–2016
- Rich Rollins 1961–1970
- Bill Rollinson 1884–1884
- Damian Rolls 2000–2004
- Drew Rom 2023–2023
- Jesús Romagosa 1920–1920
- Jamie Romak 2014–2015
- Bill Roman 1964–1965
- Jose Roman 1984–1986
- Ron Romanick 1984–1986
- Jason Romano 2002–2005
- Jim Romano 1950–1950
- John Romano 1958–1967
- Jordan Romano 2019–2025
- Mike Romano 1999–1999
- Sal Romano 2017–2021
- Tom Romano 1987–1987
- Dutch Romberger 1954–1954
- Bob Romby 1946–1948
- Alex Romero 2008–2009
- Davis Romero 2006–2006
- Ed Romero 1977–1990
- Enny Romero 2013–2018
- Fernando Romero 2018–2019
- J. C. Romero 1999–2012
- Jhon Romero 2021–2022
- JoJo Romero 2020–2025
- Mandy Romero 1997–2003
- Niuman Romero 2009–2010
- Ramon Romero 1984–1985
- Ricky Romero 2009–2013
- Seth Romero 2020–2020
- Stefen Romero 2014–2016
- Tommy Romero 2022–2022
- Andrew Romine 2010–2021
- Austin Romine 2011–2022
- Kevin Romine 1985–1991
- Eddie Rommel 1920–1932
- Drew Romo 2024–2025
- Enrique Romo 1977–1982
- Sergio Romo 2008–2022
- Vicente Romo 1968–1982
- John Romonosky 1953–1959
- Marc Ronan 1993–1993
- Henri Rondeau 1913–1916
- Angel Rondon 2021–2022
- Bruce Rondon 2013–2018
- Gil Rondon 1976–1979
- Hector Rondon 2013–2020
- Jorge Rondon 2014–2016
- Jose Rondon 2016–2021
- Matt Roney 2003–2006
- Gene Roof 1981–1983
- Phil Roof 1961–1977
- Brent Rooker 2020–2025
- Jim Rooker 1968–1980
- George Rooks 1891–1891
- Rolando Roomes 1988–1990
- Clemon Rooney 1941–1941
- Frank Rooney 1914–1914
- John Rooney 2025–2025
- Pat Rooney 1981–1981
- Charlie Root 1923–1941
- John Roper 1993–1995
- Jorge Roque 1970–1973
- José Roque 1929–1929
- Rafael Roque 1998–2000
- Ben Rortvedt 2021–2025
- Adonis Rosa 2019–2019
- Carlos Rosa 2008–2010
- Jose Rosado 1996–2000
- Luis Rosado 1977–1980
- Adam Rosales 2008–2018
- Leo Rosales 2008–2010
- Buddy Rosar 1939–1951
- Alberto Rosario 2016–2017
- Amed Rosario 2017–2025
- Eddie Rosario 2015–2025
- Eguy Rosario 2022–2024
- Francisco Rosario 2006–2007
- Jimmy Rosario 1971–1976
- Melvin Rosario 1997–1997
- Randy Rosario 2017–2020
- Rodrigo Rosario 2003–2003
- Sandy Rosario 2010–2013
- Santiago Rosario 1965–1965
- Victor Rosario 1990–1990
- Wilin Rosario 2011–2015
- Bobby Rose 1989–1992
- Brian Rose 1997–2001
- Chuck Rose 1909–1909
- Don Rose 1971–1974
- Haywood Rose 1902–1907
- Mike Rose 2004–2006
- Pete Rose 1997–1997
- Pete Rose 1963–1986
- rose01 1935–1935
- rose02 1931–1931
- John Roseboro 1957–1970
- Rosie Rosebraugh 1898–1899
- Basilio Rosell 1926–1929
- Bob Roselli 1955–1962
- Dave Rosello 1972–1981
- James Roseman 1882–1890
- Al Rosen 1947–1956
- Goody Rosen 1937–1946
- B. J. Rosenberg 2012–2014
- Harry Rosenberg 1930–1930
- Kenny Rosenberg 2022–2024
- Lou Rosenberg 1923–1923
- Steve Rosenberg 1988–1991
- Max Rosenfeld 1931–1933
- Larry Rosenthal 1936–1945
- Simon Rosenthal 1925–1926
- Trevor Rosenthal 2012–2020
- Wayne Rosenthal 1991–1992
- Bunny Roser 1922–1922
- Steve Roser 1944–1946
- Seth Rosin 2014–2015
- John Roskos 1998–2000
- Bob Ross 1950–1956
- Buck Ross 1936–1945
- Buster Ross 1924–1926
- Chet Ross 1939–1944
- Cliff Ross 1954–1954
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- David Ross 2002–2016
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- Ernie Ross 1902–1902
- Gary Ross 1968–1977
- George Ross 1918–1918
- Howard Ross 1924–1927
- Joe Ross 2015–2025
- Mark Ross 1982–1990
- Robbie Ross 2012–2017
- Tyson Ross 2010–2019
- William Ross 1922–1930
- Zac Rosscup 2013–2021
- Joe Rosselli 1995–1995
- Joe Rossi 1952–1952
- Bubby Rossman 2022–2022
- Claude Rossman 1904–1909
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- Ramon Rosso 2020–2021
- Rico Rossy 1991–1998
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- Bill Rotes 1893–1893
- Braggo Roth 1914–1921
- Frank Roth 1903–1910
- Herman Roth 1923–1925
- Michael Roth 2013–2016
- Bob Rothel 1945–1945
- Bobby Rothermel 1899–1899
- Jack Rothfuss 1897–1897
- Claude Rothgeb 1905–1905
- Jack Rothrock 1925–1937
- Larry Rothschild 1981–1982
- Vinny Rottino 2006–2012
- Gene Rounsaville 1970–1970
- Landen Roupp 2024–2025
- Mike Rouse 2006–2007
- Edd Roush 1913–1931
- Jimpsey Roussell 1929–1930
- Phil Routcliffe 1890–1890
- Luciano Rovira 1911–1911
- Dave Rowan 1911–1911
- Jack Rowan 1906–1914
- Aaron Rowand 2001–2011
- Wade Rowdon 1984–1988
- Dave Rowe 1877–1888
- Don Rowe 1963–1963
- Harland Rowe 1916–1916
- Jack Rowe 1879–1890
- Ken Rowe 1963–1965
- Schoolboy Rowe 1933–1949
- rowe01 1932–1932
- Bama Rowell 1939–1948
- Ben Rowen 2014–2021
- Ed Rowen 1882–1884
- Chuck Rowland 1923–1923
- Mike Rowland 1980–1981
- Rich Rowland 1990–1995
- Ryan Rowland-Smith 2007–2014
- Chris Rowley 2017–2018
- Jim Roxburgh 1884–1887
- Charlie Roy 1906–1906
- Emil Roy 1933–1933
- Jean-Pierre Roy 1946–1946
- Luther Roy 1924–1929
- Normie Roy 1950–1950
- Ormsby Roy 1929–1932
- Dizzy Royal 1937–1937
- Joe Royal 1938–1944
- royce01 1926–1926
- Chris Roycroft 2024–2025
- Carlos Royer 1906–1908
- Stan Royer 1991–1994
- royla01 1916–1916
- Jerry Royster 1973–1988
- Willie Royster 1981–1981
- Dick Rozek 1950–1954
- Dave Rozema 1977–1986
- Vic Roznovsky 1964–1969
- Ryan Rua 2014–2018
- Wilkin Ruan 2002–2003
- Al Rubeling 1940–1944
- Sonny Ruberto 1969–1972
- Jorge Rubio 1966–1967
- Art Ruble 1927–1934
- Drew Rucinski 2014–2023
- Dave Rucker 1981–1988
- Johnny Rucker 1940–1946
- Michael Rucker 2021–2023
- Nap Rucker 1907–1916
- John Rudderham 1884–1884
- Joe Rudi 1967–1982
- Dick Rudolph 1910–1927
- Don Rudolph 1957–1964
- Ernie Rudolph 1945–1945
- John Rudolph 1903–1904
- Ken Rudolph 1969–1977
- Matt Ruebel 1996–1998
- Muddy Ruel 1915–1934
- Kirk Rueter 1993–2005
- Dutch Ruether 1917–1927
- Darin Ruf 2012–2023
- Rudy Rufer 1949–1950
- Scott Ruffcorn 1993–1997
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- Chance Ruffin 2011–2013
- Johnny Ruffin 1993–2001
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- Red Ruffing 1924–1947
- Justin Ruggiano 2007–2017
- Vern Ruhle 1974–1986
- Antonio Ruiz 1944–1944
- Carlos Ruiz 2006–2017
- Chico Ruiz 1964–1971
- Chico Ruiz 1978–1980
- Esteury Ruiz 2022–2025
- Jose Ruiz 2017–2025
- Keibert Ruiz 2020–2025
- Norge Ruiz 2022–2022
- Randy Ruiz 2008–2010
- Rio Ruiz 2016–2021
- Joe Rullo 1943–1944
- Nick Rumbelow 2015–2019
- William Rumler 1914–1917
- Rich Rundles 2008–2009
- Paul Runge 1981–1988
- Tom Runnells 1985–1986
- Pete Runnels 1951–1964
- Sean Runyan 1998–2000
- Dan Runzler 2009–2017
- Josh Rupe 2005–2011
- Ryan Rupe 1999–2003
- Cameron Rupp 2013–2017
- Glendon Rusch 1997–2009
- Andy Rush 1925–1925
- Bob Rush 1948–1960
- Jim Rushford 2002–2002
- Dalton Rushing 2025–2025
- Amos Rusie 1889–1901
- Chris Rusin 2012–2020
- Scott Ruskin 1990–1993
- John Russ 1882–1882
- Pythias Russ 1925–1929
- A. Russell 1926–1926
- Adam Russell 2008–2011
- Addison Russell 2015–2019
- Allen Russell 1915–1925
- Bill Russell 1944–1944
- Bill Russell 1969–1986
- Branch Russell 1922–1932
- Ewing Russell 1924–1926
- Frank Russell 1943–1948
- Harvey Russell 1914–1915
- Jack Russell 1926–1940
- James Russell 2010–2016
- Jeff Russell 1983–1996
- Jim Russell 1942–1951
- John Henry Russell 1923–1934
- John Russell 1917–1922
- John Russell 1984–1993
- Lefty Russell 1910–1912
- Lloyd Russell 1938–1938
- Paul Russell 1894–1894
- Reb Russell 1913–1923
- Rip Russell 1939–1947
- Kevin Russo 2010–2010
- Marius Russo 1939–1946
- Dick Rusteck 1966–1966
- Hank Ruszkowski 1944–1947
- Babe Ruth 1914–1935
- Blake Rutherford 2023–2023
- Jim Rutherford 1910–1910
- Johnny Rutherford 1952–1952
- Dick Ruthven 1973–1986
- Jackson Rutledge 2023–2025
- Josh Rutledge 2012–2017
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- Adley Rutschman 2022–2025
- Silvino Ruíz 1928–1942
- Mark Ryal 1982–1990
- Rusty Ryal 2009–2010
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- Blondy Ryan 1930–1938
- Brendan Ryan 2007–2016
- Buddy Ryan 1912–1913
- Connie Ryan 1942–1954
- Cyclone Ryan 1887–1891
- Dusty Ryan 2008–2009
- Jack Ryan 1908–1911
- Jack Ryan 1929–1929
- Jack Ryan 1889–1913
- Jason Ryan 1999–2000
- Jimmy Ryan 1885–1903
- Joe Ryan 2021–2025
- John Ryan 1884–1884
- Johnny Ryan 1873–1877
- Ken Ryan 1992–1999
- Kyle Ryan 2014–2021
- Mike Ryan 1895–1895
- Mike Ryan 1964–1974
- Mike Ryan 2002–2010
- Nolan Ryan 1966–1993
- Red Ryan 1919–1932
- River Ryan 2024–2024
- Rob Ryan 1999–2001
- Rosy Ryan 1919–1933
- Ryder Ryan 2023–2024
- Mike Ryba 1935–1946
- Tom Ryder 1884–1884
- Gene Rye 1931–1931
- Gary Ryerson 1972–1973
- Hyun Jin Ryu 2013–2023
- Jae Kuk Ryu 2006–2008
- Marc Rzepczynski 2009–2018
- Matías Ríos 1915–1924
- Maurice Van Robays 1939–1946
- Simeon Woods Richardson 2022–2025
- Francisco de la Rosa 1991–1991
- Jesus de la Rosa 1975–1975
- Tomas de la Rosa 2000–2006