# List of Major League Baseball players (Rj–Rz)

The following is a list of Major League Baseball players, retired or active.

## List of Major League Baseball players

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z

## Rl through Ry

| Name | Debut | Final game | Position | Teams |
| Sendy Rleal | April 5, 2006 | September 27, 2006 | Pitcher | Baltimore Orioles |
| Joe Roa | September 20, 1995 | September 22, 2004 | Pitcher | Cleveland Indians, San Francisco Giants, Philadelphia Phillies, Colorado Rockies, San Diego Padres, Minnesota Twins |
| Jason Roach | June 14, 2003 | July 8, 2003 | Pitcher | New York Mets |
| John Roach | May 14, 1887 | May 14, 1887 | Pitcher | New York Giants |
| Mel Roach | July 31, 1953 | September 28, 1962 | Utility player | Milwaukee Braves, Chicago Cubs, Philadelphia Phillies |
| Mike Roach | August 10, 1899 | October 12, 1899 | Catcher | Washington Senators (1891–99) |
| Roxey Roach | May 2, 1910 | September 30, 1915 | Shortstop | New York Highlanders, Washington Senators, Buffalo Blues |
| Skel Roach | August 9, 1899 | August 9, 1899 | Pitcher | Chicago Orphans |
| Mike Roarke | April 19, 1961 | October 3, 1964 | Catcher | Detroit Tigers |
| Fred Roat | May 10, 1890 | August 18, 1892 | Third baseman | Pittsburgh Alleghenys, Chicago Colts |
| Bruce Robbins | July 28, 1979 | September 23, 1980 | Pitcher | Detroit Tigers |
| Jake Robbins | September 20, 2004 | September 24, 2004 | Pitcher | Cleveland Indians |
| Tony Robello | August 13, 1933 | September 29, 1934 | Second baseman | Cincinnati Reds |
| Bert Roberge | May 28, 1979 | October 4, 1986 | Pitcher | Houston Astros, Chicago White Sox, Montreal Expos |
| Skippy Roberge | July 18, 1941 | June 15, 1946 | Utility infielder | Boston Braves |
| Chris Roberson | May 12, 2006 | | Outfielder | Philadelphia Phillies |
| Kevin Roberson | July 15, 1993 | May 28, 1996 | Outfielder | Chicago Cubs, New York Mets |
| Sid Roberson | May 20, 1995 | September 29, 1995 | Pitcher | Milwaukee Brewers |
| Bip Roberts | April 7, 1986 | September 27, 1998 | Utility player | San Diego Padres, Cincinnati Reds, Kansas City Royals, Cleveland Indians, Detroit Tigers, Oakland Athletics |
| Brian Roberts | June 14, 2001 | | Second baseman | Baltimore Orioles |
| Curt Roberts | April 13, 1954 | June 8, 1956 | Second baseman | Pittsburgh Pirates |
| Dale Roberts | September 9, 1967 | September 16, 1967 | Pitcher | New York Yankees |
| Dave Roberts (1B) | September 5, 1962 | May 11, 1966 | First baseman | Houston Colt .45s, Pittsburgh Pirates |
| Dave Roberts (P) | July 6, 1969 | May 16, 1981 | Pitcher | San Diego Padres, Houston Astros, Detroit Tigers, Chicago Cubs, San Francisco Giants, Pittsburgh Pirates, Seattle Mariners, New York Mets |
| Dave Roberts (3B) | June 7, 1972 | September 18, 1982 | Third baseman | San Diego Padres, Texas Rangers, Houston Astros, Philadelphia Phillies |
| Dave Roberts (OF) | August 7, 1999 | September 28, 2008 | Outfielder | Cleveland Indians, Los Angeles Dodgers, Boston Red Sox, San Diego Padres, San Francisco Giants |
| Grant Roberts | July 27, 2000 | April 18, 2004 | Pitcher | New York Mets |
| Jim Roberts | July 15, 1924 | April 16, 1925 | Pitcher | Brooklyn Robins |
| Leon Roberts | September 3, 1974 | September 30, 1984 | Outfielder | Detroit Tigers, Houston Astros, Seattle Mariners, Texas Rangers, Kansas City Royals |
| Ray Roberts | September 12, 1919 | September 26, 1919 | Pitcher | Philadelphia Athletics |
| Red Roberts | September 3, 1943 | October 3, 1943 | Shortstop | Washington Senators |
| Robin Roberts β | June 18, 1948 | September 3, 1966 | Pitcher | Philadelphia Phillies, Baltimore Orioles, Houston Astros, Chicago Cubs |
| Ryan Roberts | July 30, 2006 | | Utility infielder | Toronto Blue Jays, Texas Rangers, Arizona Diamondbacks |
| Skipper Roberts | June 12, 1913 | August 12, 1914 | Catcher | St. Louis Cardinals, Pittsburgh Rebels, Chicago Chi-Feds |
| Willis Roberts | July 2, 1999 | August 13, 2004 | Pitcher | Detroit Tigers, Baltimore Orioles, Pittsburgh Pirates |
| Andre Robertson | September 3, 1981 | October 6, 1985 | Shortstop | New York Yankees |
| Bob Robertson | September 18, 1967 | June 23, 1979 | First baseman | Pittsburgh Pirates, Seattle Mariners, Toronto Blue Jays |
| Charlie Robertson | May 13, 1919 | June 18, 1928 | Pitcher | Chicago White Sox, St. Louis Browns, Boston Braves |
| Connor Robertson | May 17, 2007 | | Pitcher | Oakland Athletics, Arizona Diamondbacks |
| Daryl Robertson | May 4, 1962 | May 19, 1962 | Shortstop | Chicago Cubs |
| Dave Robertson | June 5, 1912 | September 27, 1922 | Outfielder | New York Giants, Chicago Cubs, Pittsburgh Pirates |
| David Robertson | June 29, 2008 | | Pitcher | New York Yankees |
| Dick Robertson | September 16, 1913 | June 20, 1919 | Pitcher | Cincinnati Reds, Boston Red Sox, Washington Senators |
| Don Robertson | April 13, 1954 | May 23, 1954 | Outfielder | Chicago Cubs |
| Gene Robertson | July 4, 1919 | May 18, 1930 | Third baseman | St. Louis Browns, New York Yankees, Boston Braves |
| Jeriome Robertson | September 2, 2002 | July 21, 2004 | Pitcher | Houston Astros, Cleveland Indians |
| Jerry Robertson | April 8, 1969 | June 28, 1970 | Pitcher | Montreal Expos, Detroit Tigers |
| Jim Robertson | April 15, 1954 | May 10, 1955 | Catcher | Philadelphia/Kansas City Athletics |
| Mike Robertson | September 6, 1996 | June 26, 1998 | First baseman | Chicago White Sox, Philadelphia Phillies, Arizona Diamondbacks |
| Nate Robertson | September 7, 2002 | | Pitcher | Florida Marlins, Detroit Tigers, Philadelphia Phillies |
| Rich Robertson (RHP) | September 10, 1966 | July 20, 1971 | Pitcher | San Francisco Giants |
| Rich Robertson (LHP) | April 30, 1993 | May 3, 1998 | Pitcher | Pittsburgh Pirates, Minnesota Twins, Anaheim Angels |
| Sherry Robertson | September 8, 1940 | September 21, 1952 | Utility player | Washington Senators, Philadelphia Athletics |
| Billy Jo Robidoux | September 11, 1985 | September 17, 1990 | First baseman | Milwaukee Brewers, Chicago White Sox, Boston Red Sox |
| Aaron Robinson | May 6, 1943 | September 28, 1951 | Catcher | New York Yankees, Chicago White Sox, Detroit Tigers, Boston Red Sox |
| Bill Robinson (OF) | September 20, 1966 | May 23, 1983 | Outfielder | New York Yankees, Philadelphia Phillies, Pittsburgh Pirates |
| Brooks Robinson β | September 17, 1955 | August 13, 1977 | Third baseman | Baltimore Orioles |
| Bruce Robinson | August 19, 1978 | October 4, 1980 | Catcher | Oakland Athletics, New York Yankees |
| Charlie Robinson | August 2, 1884 | July 4, 1885 | Catcher | Indianapolis Hoosiers (AA), Brooklyn Grays |
| Craig Robinson | September 9, 1972 | October 1, 1977 | Shortstop | Philadelphia Phillies, Atlanta Braves, San Francisco Giants |
| Dave Robinson | September 10, 1970 | April 21, 1971 | Outfielder | San Diego Padres |
| Dewey Robinson | April 6, 1979 | October 4, 1981 | Pitcher | Chicago White Sox |
| Don Robinson | April 10, 1978 | July 12, 1992 | Pitcher | Pittsburgh Pirates, San Francisco Giants, California Angels, Philadelphia Phillies |
| Earl Robinson | September 10, 1958 | September 30, 1964 | Outfielder | Los Angeles Dodgers, Baltimore Orioles |
| Eddie Robinson | September 9, 1942 | September 15, 1957 | First baseman | Cleveland Indians, Washington Senators, Chicago White Sox, Philadelphia Athletics, New York Yankees, Kansas City Athletics, Detroit Tigers, Baltimore Orioles |
| Floyd Robinson | August 10, 1960 | September 29, 1968 | Outfielder | Chicago White Sox, Cincinnati Reds, Oakland Athletics, Boston Red Sox |
| Frank Robinson β | April 17, 1956 | September 18, 1976 | Outfielder | Cincinnati Reds, Baltimore Orioles, Los Angeles Dodgers, California Angels, Cleveland Indians |
| Fred Robinson | April 17, 1884 | April 19, 1884 | Second baseman | Cincinnati Outlaw Reds |
| Hank Robinson | September 2, 1911 | August 12, 1918 | Pitcher | Pittsburgh Pirates, St. Louis Cardinals, New York Yankees |
| Humberto Robinson | April 20, 1955 | July 24, 1960 | Pitcher | Milwaukee Braves, Cleveland Indians, Philadelphia Phillies |
| Jack Robinson (C) | September 6, 1902 | October 3, 1902 | Catcher | New York Giants |
| Jack Robinson (P) | May 4, 1949 | May 11, 1949 | Pitcher | Boston Red Sox |
| Jackie Robinson β | April 15, 1947 | September 30, 1956 | Second baseman | Brooklyn Dodgers |
| Jeff Robinson (RP) | April 7, 1984 | October 3, 1992 | Pitcher | San Francisco Giants, Pittsburgh Pirates, New York Yankees, California Angels, Chicago Cubs |
| Jeff Robinson (SP) | April 12, 1987 | July 20, 1992 | Pitcher | Detroit Tigers, Baltimore Orioles, Texas Rangers, Pittsburgh Pirates |
| Kenny Robinson | July 20, 1995 | September 24, 1997 | Pitcher | Toronto Blue Jays, Kansas City Royals |
| Kerry Robinson | September 22, 1998 | June 17, 2006 | Outfielder | Tampa Bay Devil Rays, Cincinnati Reds, St. Louis Cardinals, San Diego Padres, Kansas City royals |
| Rabbit Robinson | April 22, 1903 | June 9, 1910 | Utility player | Washington Senators, Detroit Tigers, Cincinnati Reds |
| Ron Robinson | August 14, 1984 | July 2, 1992 | Pitcher | Cincinnati Reds, Milwaukee Brewers |
| Shane Robinson | May 7, 2009 | | Outfielder | St. Louis Cardinals |
| Trayvon Robinson | August 5, 2011 | | Outfielder | Seattle Mariners |
| Val Robinson | May 1, 1872 | May 24, 1872 | Outfielder | Washington Olympics |
| Wilbert Robinson β | April 19, 1886 | September 29, 1902 | Catcher | Philadelphia Athletics (AA), Baltimore Orioles, St. Louis Cardinals, Baltimore Orioles |
| Yank Robinson | August 24, 1882 | August 10, 1892 | Second baseman | Detroit Wolverines, Baltimore Monumentals, St. Louis Browns, Pittsburgh Burghers, Cincinnati Kelly's Killers, Washington Senators (1891–99) |
| Chick Robitaille | September 2, 1904 | August 29, 1905 | Pitcher | Pittsburgh Pirates |
| Óscar Robles | May 10, 2005 | | Utility infielder | Los Angeles Dodgers, San Diego Padres |
| Rafael Robles | April 8, 1969 | June 10, 1972 | Shortstop | San Diego Padres |
| Sergio Robles | August 27, 1972 | September 13, 1976 | Catcher | Baltimore Orioles, Los Angeles Dodgers |
| Tom Robson | September 14, 1974 | September 18, 1975 | First baseman | Texas Rangers |
| Adam Rocap | May 5, 1875 | October 28, 1875 | Outfielder | Philadelphia Athletics (1860–76) |
| Mickey Rocco | June 5, 1943 | June 24, 1946 | First baseman | Cleveland Indians |
| Armando Roche | May 10, 1945 | June 5, 1945 | Pitcher | Washington Senators |
| Jack Roche | May 24, 1914 | April 18, 1917 | Catcher | St. Louis Cardinals |
| Ben Rochefort | October 3, 1914 | October 3, 1914 | First baseman | Philadelphia Athletics |
| Lou Rochelli | August 25, 1944 | August 29, 1944 | Second baseman | Brooklyn Dodgers |
| Mike Rochford | September 3, 1988 | April 16, 1990 | Pitcher | Boston Red Sox |
| Les Rock | September 11, 1936 | September 23, 1936 | First baseman | Chicago White Sox |
| Ike Rockenfield | May 5, 1905 | October 7, 1906 | Second baseman | St. Louis Browns |
| John Rocker | May 5, 1998 | May 14, 2003 | Pitcher | Atlanta Braves, Cleveland Indians, Texas Rangers, Tampa Bay Devil Rays |
| Pat Rockett | September 17, 1976 | July 8, 1978 | Shortstop | Atlanta Braves |
| Rich Rodas | September 6, 1983 | June 19, 1984 | Pitcher | Los Angeles Dodgers |
| Andre Rodgers | April 16, 1957 | September 30, 1967 | Shortstop | San Francisco/New York Giants, Chicago Cubs, Pittsburgh Pirates |
| Bill Rodgers (IF) | April 15, 1915 | May 13, 1916 | Second baseman | Cleveland Indians, Boston Red Sox, Cincinnati Reds |
| Bill Rodgers (OF) | September 27, 1944 | April 21, 1945 | Outfielder | Pittsburgh Pirates |
| Buck Rodgers | September 8, 1961 | October 1, 1969 | Catcher | Los Angeles/California Angels |
| Eric Rodin | September 7, 1954 | September 24, 1954 | Outfielder | New York Giants |
| Fernando Rodney | May 4, 2002 | | Pitcher | Detroit Tigers, Los Angeles Angels of Anaheim |
| Alex Rodriguez | July 8, 1994 | | Shortstop | Seattle Mariners, Texas Rangers, New York Yankees |
| Aneury Rodríguez | April 2, 2011 | | Pitcher | Houston Astros |
| Aurelio Rodríguez | September 1, 1967 | October 1, 1983 | Third baseman | California Angels, Washington Senators (1961–1971), Detroit Tigers, San Diego Padres, New York Yankees, Chicago White Sox, Baltimore Orioles |
| Carlos Rodríguez | June 16, 1991 | October 1, 1995 | Utility infielder | New York Yankees, Boston Red Sox |
| Eddy Rodríguez | May 31, 2004 | July 31, 2006 | Pitcher | Baltimore Orioles |
| Eduardo Rodríguez | June 20, 1973 | September 17, 1979 | Pitcher | Milwaukee Brewers, Kansas City Royals |
| Edwin Rodríguez | September 28, 1982 | April 30, 1985 | Second baseman | New York Yankees, San Diego Padres |
| Ellie Rodríguez | May 26, 1968 | October 3, 1976 | Catcher | New York Yankees, Kansas City Royals, Milwaukee Brewers, California Angels, Los Angeles Dodgers |
| Félix Rodríguez | May 13, 1995 | September 30, 2006 | Pitcher | Los Angeles Dodgers, Cincinnati Reds, Arizona Diamondbacks, San Francisco Giants, Philadelphia Phillies, New York Yankees, Washington Nationals |
| Fernando Rodriguez | May 2, 2009 | | Pitcher | Los Angeles Angels of Anaheim, Houston Astros |
| Francisco Rodríguez (P born 1982) | September 18, 2002 | | Pitcher | Anaheim Angels/Los Angeles Angels of Anaheim, New York Mets, Milwaukee Brewers |
| Francisco Rodríguez (P born 1983) | April 15, 2010 | | Pitcher | Los Angeles Angels of Anaheim |
| Frank Rodriguez | April 26, 1995 | July 22, 2001 | Pitcher | Boston Red Sox, Minnesota Twins, Seattle Mariners, Cincinnati Reds |
| Freddy Rodríguez | April 18, 1958 | May 27, 1959 | Pitcher | Chicago Cubs, Philadelphia Phillies |
| Guillermo Rodríguez | June 13, 2007 | | Catcher | San Francisco Giants, Baltimore Orioles |
| Héctor Rodríguez | April 15, 1952 | September 16, 1952 | Third baseman | Chicago White Sox |
| Henry Rodríguez (OF) | July 5, 1992 | May 7, 2002 | Outfielder | Los Angeles Dodgers, Montreal Expos, Chicago Cubs, Florida Marlins, Montreal Expos |
| Henry Rodríguez (P) | September 21, 2009 | | Pitcher | Oakland Athletics, Washington Nationals |
| Iván Rodríguez | June 20, 1991 | | Catcher | Texas Rangers, Florida Marlins, Detroit Tigers, New York Yankees, Houston Astros, Washington Nationals |
| John Rodriguez | July 18, 2005 | October 1, 2006 | Outfielder | St. Louis Cardinals |
| José Rodríguez (2B) | October 5, 1916 | September 2, 1918 | Second baseman | New York Giants |
| José Rodríguez (P) | May 18, 2000 | July 13, 2002 | Pitcher | St. Louis Cardinals, Minnesota Twins |
| Josh Rodriguez | April 5, 2011 | | Infielder | Pittsburgh Pirates |
| Liu Rodríguez | June 9, 1999 | October 3, 1999 | Utility infielder | Chicago White Sox |
| Luis Rodríguez | May 21, 2005 | | Utility infielder | Minnesota Twins, San Diego Padres, Seattle Mariners |
| Nerio Rodríguez | August 18, 1996 | August 29, 2002 | Pitcher | Baltimore Orioles, Toronto Blue Jays, Cleveland Indians, St. Louis Cardinals |
| Rafael Rodríguez | April 15, 2009 | | Pitcher | Los Angeles Angels of Anaheim, Arizona Diamondbacks |
| Ricardo Rodríguez | August 21, 2002 | August 8, 2005 | Pitcher | Cleveland Indians, Texas Rangers |
| Rich Rodriguez | June 30, 1990 | May 3, 2003 | Pitcher | San Diego Padres, Florida Marlins, St. Louis Cardinals, San Francisco Giants, New York Mets, Cleveland Indians, Texas Rangers, Anaheim Angels |
| Rick Rodriguez | September 17, 1986 | August 26, 1990 | Pitcher | Oakland Athletics, Cleveland Indians, San Francisco Giants |
| Roberto Rodríguez | May 13, 1967 | September 26, 1970 | Pitcher | Kansas City/Oakland Athletics, San Diego Padres, Chicago Cubs |
| Rosario Rodríguez | September 1, 1989 | October 4, 1991 | Pitcher | Cincinnati Reds, Pittsburgh Pirates |
| Rubén Rodríguez | September 17, 1986 | October 1, 1988 | Catcher | Pittsburgh Pirates |
| Sean Rodriguez | April 19, 2008 | | Second baseman | Los Angeles Angels of Anaheim, Tampa Bay Rays |
| Steve Rodriguez | April 30, 1995 | October 1, 1995 | Second baseman | Boston Red Sox, Detroit Tigers |
| Tony Rodríguez | July 6, 1996 | September 23, 1996 | Shortstop | Boston Red Sox |
| Vic Rodriguez | September 5, 1984 | July 30, 1989 | Utility infielder | Baltimore Orioles, Minnesota Twins |
| Wandy Rodríguez | May 23, 2005 | | Pitcher | Houston Astros |
| Wilfredo Rodríguez | September 21, 2001 | October 4, 2001 | Pitcher | Houston Astros |
| Clay Roe | October 3, 1923 | October 3, 1923 | Pitcher | Washington Senators |
| Preacher Roe | August 22, 1938 | September 4, 1954 | Pitcher | St. Louis Cardinals, Pittsburgh Pirates, Brooklyn Dodgers |
| Ed Roebuck | April 18, 1955 | July 7, 1966 | Pitcher | Brooklyn/Los Angeles Dodgers, Washington Senators (1961–1971), Philadelphia Phillies |
| Gary Roenicke | June 8, 1976 | July 24, 1988 | Outfielder | Montreal Expos, Baltimore Orioles, New York Yankees, Atlanta Braves |
| Josh Roenicke | September 13, 2008 | | Pitcher | Cincinnati Reds, Toronto Blue Jays, Colorado Rockies |
| Ron Roenicke | September 2, 1981 | May 21, 1988 | Outfielder | Los Angeles Dodgers, Seattle Mariners, San Diego Padres, San Francisco Giants, Philadelphia Phillies |
| Mike Roesler | August 9, 1989 | April 23, 1990 | Pitcher | Cincinnati Reds, Pittsburgh Pirates |
| Oscar Roettger | July 7, 1923 | June 27, 1932 | First baseman | New York Yankees, Brooklyn Robins, Philadelphia Athletics |
| Wally Roettger | May 1, 1927 | September 30, 1934 | Outfielder | St. Louis Cardinals, New York Giants, Cincinnati Reds, Pittsburgh Pirates |
| Ed Roetz | May 26, 1929 | October 6, 1929 | Utility infielder | St. Louis Browns |
| Joe Rogalski | September 14, 1938 | September 23, 1938 | Pitcher | Detroit Tigers |
| Billy Rogell | April 14, 1925 | August 25, 1940 | Shortstop | Boston Red Sox, Detroit Tigers, Chicago Cubs |
| Brian Rogers | September 1, 2006 | May 26, 2007 | Pitcher | Pittsburgh Pirates |
| Buck Rogers | September 15, 1935 | September 24, 1935 | Pitcher | Washington Senators |
| Ed Rogers | September 5, 2002 | July 8, 2006 | Utility player | Baltimore Orioles |
| Emmett Rogers | April 19, 1890 | September 28, 1890 | Catcher | Toledo Maumees |
| Esmil Rogers | September 12, 2009 | | Pitcher | Colorado Rockies |
| Fraley Rogers | April 30, 1872 | July 16, 1873 | Outfielder | Boston Red Stockings |
| Jay Rogers | May 22, 1914 | June 26, 1914 | Catcher | New York Yankees |
| Jim Rogers | April 17, 1896 | June 15, 1897 | Utility infielder | Washington Senators (1891–99), Louisville Colonels |
| Jimmy Rogers | July 30, 1995 | September 27, 1995 | Pitcher | Toronto Blue Jays |
| Kenny Rogers | April 6, 1989 | September 14, 2008 | Pitcher | Texas Rangers, New York Yankees, Oakland Athletics, New York Mets, Minnesota Twins, Detroit Tigers |
| Kevin Rogers | September 4, 1992 | May 1, 1994 | Pitcher | San Francisco Giants |
| Lee Rogers | April 24, 1938 | September 29, 1938 | Pitcher | Boston Red Sox, Brooklyn Dodgers |
| Mark Rogers | September 10, 2010 | | Pitcher | Milwaukee Brewers |
| Packy Rogers | July 12, 1938 | September 7, 1938 | Utility infielder | Brooklyn Dodgers |
| Steve Rogers | July 18, 1973 | May 19, 1985 | Pitcher | Montreal Expos |
| Tom Rogers | April 14, 1917 | October 1, 1921 | Pitcher | St. Louis Browns, Philadelphia Athletics, New York Yankees |
| Clint Rogge | April 11, 1915 | June 6, 1921 | Pitcher | Pittsburgh Rebels, Cincinnati Reds |
| Garry Roggenburk | April 20, 1963 | July 27, 1969 | Pitcher | Minnesota Twins, Boston Red Sox, Seattle Pilots |
| Mike Rogodzinski | May 4, 1973 | September 28, 1975 | Outfielder | Philadelphia Phillies |
| Saul Rogovin | April 28, 1949 | June 19, 1957 | Pitcher | Detroit Tigers, Chicago White Sox, Baltimore Orioles, Philadelphia Phillies |
| Dave Rohde | April 9, 1990 | May 22, 1992 | Second baseman | Houston Astros, Cleveland Indians |
| George Rohe | May 7, 1901 | October 6, 1907 | Third baseman | Baltimore Orioles (1901–02), Chicago White Sox |
| Ryan Rohlinger | August 13, 2008 | | Third baseman | San Francisco Giants |
| Dan Rohn | September 2, 1983 | May 21, 1986 | Utility infielder | Chicago Cubs, Cleveland Indians |
| Billy Rohr | April 14, 1967 | June 26, 1968 | Pitcher | Boston Red Sox, Cleveland Indians |
| Les Rohr | September 19, 1967 | September 19, 1969 | Pitcher | New York Mets |
| Dan Rohrmeier | September 3, 1997 | September 28, 1997 | First baseman | Seattle Mariners |
| Ray Rohwer | April 13, 1921 | September 1, 1922 | Outfielder | Pittsburgh Pirates |
| Tony Roig | September 13, 1953 | September 26, 1956 | Utility infielder | Washington Senators |
| Cookie Rojas | April 10, 1962 | October 1, 1977 | Second baseman | Cincinnati Reds, Philadelphia Phillies, St. Louis Cardinals, Kansas City Royals |
| Mel Rojas | August 1, 1990 | July 1, 1999 | Pitcher | Montreal Expos, Chicago Cubs, New York Mets, Los Angeles Dodgers, Detroit Tigers |
| Minnie Rojas | May 30, 1966 | July 24, 1968 | Pitcher | California Angels |
| Stan Rojek | September 22, 1942 | May 13, 1952 | Shortstop | Brooklyn Dodgers, Pittsburgh Pirates, St. Louis Cardinals, St. Louis Browns |
| Jim Roland | September 20, 1962 | September 16, 1972 | Pitcher | Minnesota Twins, Oakland Athletics, New York Yankees, Texas Rangers |
| Scott Rolen | August 1, 1996 | | Third baseman | Philadelphia Phillies, St. Louis Cardinals, Toronto Blue Jays, Cincinnati Reds |
| Red Rolfe | June 29, 1931 | September 27, 1942 | Third baseman | New York Yankees |
| Nate Rolison | September 5, 2000 | September 30, 2000 | First baseman | Florida Marlins |
| Ray Rolling | September 6, 1912 | September 26, 1912 | Second baseman | St. Louis Cardinals |
| Red Rollings | April 17, 1927 | September 11, 1930 | Third baseman | Boston Red Sox, Boston Braves |
| Jimmy Rollins | September 17, 2000 | | Shortstop | Philadelphia Phillies |
| Rich Rollins | June 16, 1961 | September 26, 1970 | Third baseman | Minnesota Twins, Seattle Pilots, Milwaukee Brewers, Cleveland Indians |
| Bill Rollinson | June 17, 1884 | June 17, 1884 | Catcher | Washington Nationals (UA) |
| Damian Rolls | September 3, 2000 | October 3, 2004 | Utility player | Tampa Bay Devil Rays |
| Bill Roman | September 30, 1964 | October 3, 1965 | First baseman | Detroit Tigers |
| José Román | September 5, 1984 | August 27, 1986 | Pitcher | Cleveland Indians |
| Ron Romanick | April 5, 1984 | July 21, 1986 | Pitcher | California Angels |
| Jason Romano | April 17, 2002 | July 9, 2005 | Outfielder | Texas Rangers, Colorado Rockies, Los Angeles Dodgers, Tampa Bay Devil Rays, Cincinnati Reds |
| Jim Romano | September 21, 1950 | September 29, 1950 | Pitcher | Brooklyn Dodgers |
| Johnny Romano | September 12, 1958 | September 4, 1967 | Catcher | Chicago White Sox, Cleveland Indians, St. Louis Cardinals |
| Mike Romano | September 5, 1999 | September 24, 1999 | Pitcher | Toronto Blue Jays |
| Tom Romano | September 1, 1987 | October 2, 1987 | Outfielder | Montreal Expos |
| Dutch Romberger | May 31, 1954 | August 1, 1954 | Pitcher | Philadelphia Athletics |
| Alex Romero | April 2, 2008 | | Outfielder | Arizona Diamondbacks |
| Davis Romero | August 18, 2006 | September 30, 2006 | Pitcher | Toronto Blue Jays |
| Ed Romero | July 16, 1977 | June 27, 1990 | Utility infielder | Milwaukee Brewers, Boston Red Sox, Atlanta Braves, Detroit Tigers |
| J. C. Romero | September 15, 1999 | | Pitcher | Minnesota Twins, Los Angeles Angels of Anaheim, Boston Red Sox, Philadelphia Phillies, Colorado Rockies |
| Mandy Romero | July 15, 1997 | August 24, 2003 | Catcher | San Diego Padres, Boston Red Sox, Colorado Rockies |
| Niuman Romero | September 8, 2009 | | Shortstop | Cleveland Indians, Boston Red Sox |
| Ramón Romero | September 18, 1984 | September 21, 1985 | Pitcher | Cleveland Indians |
| Ricky Romero | April 9, 2009 | | Pitcher | Toronto Blue Jays |
| Andrew Romine | September 24, 2010 | | Shortstop | Los Angeles Angels of Anaheim |
| Austin Romine | September 11, 2011 | | Catcher | New York Yankees |
| Kevin Romine | September 4, 1985 | August 4, 1991 | Outfielder | Boston Red Sox |
| Eddie Rommel | April 19, 1920 | September 17, 1932 | Pitcher | Philadelphia Athletics |
| Enrique Romo | April 7, 1977 | October 1, 1982 | Pitcher | Seattle Mariners, Pittsburgh Pirates |
| Sergio Romo | June 26, 2008 | | Pitcher | San Francisco Giants |
| Vicente Romo | April 11, 1968 | July 27, 1982 | Pitcher | Los Angeles Dodgers, Cleveland Indians, Boston Red Sox, Chicago White Sox, San Diego Padres |
| John Romonosky | September 6, 1953 | September 11, 1959 | Pitcher | St. Louis Cardinals, Washington Senators |
| Marc Ronan | September 21, 1993 | October 3, 1993 | Catcher | St. Louis Cardinals |
| Henri Rondeau | April 11, 1913 | July 1, 1916 | Outfielder | Detroit Tigers, Washington Senators |
| Gilberto Rondón | April 10, 1976 | September 29, 1979 | Pitcher | Houston Astros, Chicago White Sox |
| Matt Roney | April 2, 2003 | May 30, 2006 | Pitcher | Detroit Tigers, Oakland Athletics |
| Gene Roof | September 3, 1981 | October 2, 1983 | Outfielder | St. Louis Cardinals, Montreal Expos |
| Phil Roof | April 29, 1961 | May 30, 1977 | Catcher | Milwaukee Braves, California Angels, Cleveland Indians, Kansas City/Oakland Athletics, Milwaukee Brewers, Minnesota Twins, Chicago White Sox, Toronto Blue Jays |
| Jim Rooker | June 30, 1968 | May 2, 1980 | Pitcher | Kansas City Royals, Detroit Tigers, Pittsburgh Pirates |
| George Rooks | May 12, 1891 | May 16, 1891 | Outfielder | Boston Beaneaters |
| Rolando Roomes | April 22, 1988 | September 30, 1990 | Outfielder | Chicago Cubs, Cincinnati Reds, Montreal Expos |
| Frank Rooney | April 18, 1914 | June 6, 1914 | First baseman | Indianapolis Hoosiers (FL) |
| Pat Rooney | September 9, 1981 | October 4, 1981 | Outfielder | Montreal Expos |
| Charlie Root | April 18, 1923 | September 2, 1941 | Pitcher | St. Louis Browns, Chicago Cubs |
| John Roper | May 16, 1993 | September 11, 1995 | Pitcher | Cincinnati Reds, San Francisco Giants |
| Jorge Roque | September 4, 1970 | May 15, 1973 | Outfielder | St. Louis Cardinals, Montreal Expos |
| Rafael Roque | August 1, 1998 | September 28, 2000 | Pitcher | Milwaukee Brewers |
| Carlos Rosa | June 14, 2008 | | Pitcher | Kansas City Royals, Arizona Diamondbacks |
| José Rosado | June 12, 1996 | April 30, 2000 | Pitcher | Kansas City Royals |
| Luis Rosado | September 8, 1977 | October 5, 1980 | First baseman | New York Mets |
| Adam Rosales | August 9, 2008 | | Third baseman | Cincinnati Reds, Oakland Athletics |
| Leo Rosales | June 15, 2008 | | Pitcher | Arizona Diamondbacks |
| Buddy Rosar | April 29, 1939 | September 19, 1951 | Catcher | New York Yankees, Cleveland Indians, Philadelphia Athletics, Boston Red Sox |
| Francisco Rosario | May 6, 2006 | | Pitcher | Toronto Blue Jays, Philadelphia Phillies |
| Jimmy Rosario | April 8, 1971 | June 21, 1976 | Outfielder | San Francisco Giants, Milwaukee Brewers |
| Mel Rosario | September 11, 1997 | September 28, 1997 | Catcher | Baltimore Orioles |
| Rodrigo Rosario | June 21, 2003 | June 27, 2003 | Pitcher | Houston Astros |
| Sandy Rosario | September 23, 2010 | | Pitcher | Florida Marlins |
| Santiago Rosario | June 23, 1965 | October 3, 1965 | First baseman | Kansas City Athletics |
| Víctor Rosario | September 6, 1990 | October 3, 1990 | Shortstop | Atlanta Braves |
| Wilin Rosario | September 6, 2011 | | Catcher | Colorado Rockies |
| Bobby Rose | August 12, 1989 | May 19, 1992 | Second baseman | California Angels |
| Brian Rose | July 25, 1997 | May 30, 2001 | Pitcher | Boston Red Sox, Colorado Rockies, New York Mets, Tampa Bay Devil Rays |
| Chuck Rose | September 13, 1909 | September 29, 1909 | Pitcher | St. Louis Browns |
| Don Rose | September 15, 1971 | April 23, 1974 | Pitcher | New York Mets, California Angels, San Francisco Giants |
| Mike Rose | October 1, 2004 | October 1, 2006 | Catcher | Oakland Athletics, Los Angeles Dodgers, St. Louis Cardinals |
| Pete Rose | April 8, 1963 | August 17, 1986 | Utility player | Cincinnati Reds, Philadelphia Phillies, Montreal Expos |
| Pete Rose Jr. | September 1, 1997 | September 28, 1997 | Third baseman | Cincinnati Reds |
| John Roseboro | June 14, 1957 | August 11, 1970 | Catcher | Brooklyn/Los Angeles Dodgers, Minnesota Twins, Washington Senators (1961–1971) |
| Zeke Rosebraugh | September 21, 1898 | July 5, 1899 | Pitcher | Pittsburgh Pirates |
| Bob Roselli | August 16, 1955 | September 29, 1962 | Catcher | Milwaukee Braves, Chicago White Sox |
| Dave Rosello | September 10, 1972 | October 5, 1981 | Utility infielder | Chicago Cubs, Cleveland Indians |
| Chief Roseman | May 1, 1882 | August 25, 1890 | Outfielder | Troy Trojans, New York Metropolitans, Philadelphia Athletics (AA), Brooklyn Grays, St. Louis Browns (AA), Louisville Colonels |
| Al Rosen | September 10, 1947 | September 30, 1956 | Third baseman | Cleveland Indians |
| Goody Rosen | September 14, 1937 | September 26, 1946 | Outfielder | Brooklyn Dodgers, New York Giants |
| Harry Rosenberg | July 15, 1930 | September 20, 1930 | Outfielder | New York Giants |
| Lou Rosenberg | May 22, 1923 | July 16, 1923 | Second baseman | Chicago White Sox |
| Steve Rosenberg | June 4, 1988 | May 26, 1991 | Pitcher | Chicago White Sox, San Diego Padres |
| Max Rosenfeld | April 21, 1931 | May 13, 1933 | Outfielder | Brooklyn Dodgers |
| Larry Rosenthal | June 20, 1936 | June 22, 1945 | Outfielder | Chicago White Sox, Cleveland Indians, New York Yankees, Philadelphia Athletics |
| Si Rosenthal | September 8, 1925 | September 26, 1926 | Outfielder | Boston Red Sox |
| Wayne Rosenthal | June 26, 1991 | April 14, 1992 | Pitcher | Texas Rangers |
| Bunny Roser | August 24, 1922 | September 22, 1922 | Outfielder | Boston Braves |
| Steve Roser | May 5, 1944 | June 29, 1946 | Pitcher | New York Yankees, Boston Braves |
| John Roskos | April 20, 1998 | May 14, 2000 | Utility player | Florida Marlins, San Diego Padres |
| Bob Ross | June 16, 1950 | May 8, 1956 | Pitcher | Washington Senators, Philadelphia Phillies |
| Buck Ross | May 7, 1936 | September 10, 1945 | Pitcher | Philadelphia Athletics, Chicago White Sox |
| Buster Ross | June 15, 1924 | May 13, 1926 | Pitcher | Boston Red Sox |
| Chet Ross | September 15, 1939 | August 4, 1944 | Outfielder | Boston Braves |
| Cliff Ross | September 11, 1954 | September 20, 1954 | Pitcher | Cincinnati Redlegs |
| Cody Ross | July 4, 2003 | | Outfielder | Detroit Tigers, Los Angeles Dodgers, Cincinnati Reds, Florida Marlins, San Francisco Giants |
| David Ross | June 29, 2002 | | Catcher | Los Angeles Dodgers, Pittsburgh Pirates, San Diego Padres, Cincinnati Reds, Boston Red Sox, Atlanta Braves |
| Don Ross | April 19, 1938 | September 22, 1946 | Third baseman | Detroit Tigers, Brooklyn Dodgers, Cleveland Indians |
| Ernie Ross | September 17, 1902 | September 22, 1902 | Pitcher | Baltimore Orioles (1901–02) |
| Gary Ross | June 28, 1968 | July 8, 1977 | Pitcher | Chicago Cubs, San Diego Padres, California Angels |
| George Ross | June 27, 1918 | June 27, 1918 | Pitcher | New York Giants |
| Mark Ross | September 12, 1982 | August 15, 1990 | Pitcher | Houston Astros, Pittsburgh Pirates, Toronto Blue Jays |
| Tyson Ross | April 7, 2010 | | Pitcher | Oakland Athletics |
| Joe Rosselli | April 30, 1995 | October 1, 1995 | Pitcher | San Francisco Giants |
| Joe Rossi | April 20, 1952 | September 12, 1952 | Catcher | Cincinnati Reds |
| Claude Rossman | September 16, 1904 | September 3, 1909 | First baseman | Cleveland Naps, Detroit Tigers, St. Louis Browns |
| Frank Rosso | September 15, 1944 | October 1, 1944 | Pitcher | New York Giants |
| Rico Rossy | September 11, 1991 | September 27, 1998 | Utility infielder | Atlanta Braves, Kansas City Royals, Seattle Mariners |
| Marv Rotblatt | July 4, 1948 | July 22, 1951 | Pitcher | Chicago White Sox |
| Bill Rotes | June 14, 1893 | August 15, 1893 | Pitcher | Louisville Colonels |
| Braggo Roth | September 1, 1914 | October 1, 1921 | Outfielder | Chicago White Sox, Cleveland Indians, Philadelphia Athletics, Boston Red Sox, Washington Senators, New York Yankees |
| Frank Roth | April 18, 1903 | October 9, 1910 | Catcher | Philadelphia Phillies, St. Louis Browns, Chicago White Sox, Cincinnati Reds |
| Bob Rothel | April 22, 1945 | April 29, 1945 | Third baseman | Cleveland Indians |
| Bobby Rothermel | June 18, 1899 | July 15, 1899 | Second baseman | Baltimore Orioles (19th century) |
| Jack Rothfuss | August 2, 1897 | September 25, 1897 | First baseman | Pittsburgh Pirates |
| Claude Rothgeb | June 17, 1905 | September 30, 1905 | Outfielder | Washington Senators |
| Jack Rothrock | July 28, 1925 | October 2, 1937 | Outfielder | Boston Red Sox, Chicago White Sox, St. Louis Cardinals, Philadelphia Athletics |
| Larry Rothschild | September 11, 1981 | September 11, 1982 | Pitcher | Detroit Tigers |
| Vinny Rottino | September 1, 2006 | | Utility player | Milwaukee Brewers, Florida Marlins |
| Gene Rounsaville | April 7, 1970 | April 29, 1970 | Pitcher | Chicago White Sox |
| Mike Rouse | June 9, 2006 | August 4, 2007 | Utility infielder | Oakland Athletics, Cleveland Indians |
| Edd Roush β | August 20, 1913 | September 27, 1931 | Outfielder | Chicago White Sox, Indianapolis Hoosiers (FL)/Newark Peppers, Cincinnati Reds, New York Giants |
| Phil Routcliffe | April 21, 1890 | April 21, 1890 | Outfielder | Pittsburgh Alleghenys |
| Dave Rowan | May 27, 1911 | June 22, 1911 | First baseman | St. Louis Browns |
| Jack Rowan | September 6, 1906 | July 10, 1914 | Pitcher | Detroit Tigers, Cincinnati Reds, Philadelphia Phillies, Chicago Cubs |
| Aaron Rowand | June 16, 2001 | | Outfielder | Chicago White Sox, Philadelphia Phillies, San Francisco Giants |
| Wade Rowdon | September 8, 1984 | June 19, 1988 | Third baseman | Cincinnati Reds, Chicago Cubs, Baltimore Orioles |
| Dave Rowe | May 30, 1877 | June 17, 1888 | Outfielder | Chicago White Stockings, Cleveland Blues (NL), Baltimore Orioles (19th century), St. Louis Maroons, Kansas City Cowboys (NL), Kansas City Cowboys (AA) |
| Don Rowe | April 9, 1963 | July 18, 1963 | Pitcher | New York Mets |
| Harland Rowe | June 23, 1916 | September 27, 1916 | Third baseman | Philadelphia Athletics |
| Jack Rowe | September 6, 1879 | October 4, 1890 | Shortstop | Buffalo Bisons (NL), Detroit Wolverines, Pittsburgh Alleghenys, Buffalo Bisons (PL) |
| Ken Rowe | April 14, 1963 | May 4, 1965 | Pitcher | Los Angeles Dodgers, Baltimore Orioles |
| Schoolboy Rowe | April 15, 1933 | September 13, 1949 | Pitcher | Detroit Tigers, Brooklyn Dodgers, Philadelphia Phillies |
| Bama Rowell | September 4, 1939 | October 2, 1948 | Utility player | Boston Braves, Philadelphia Phillies |
| Ed Rowen | May 1, 1882 | May 12, 1884 | Utility player | Boston Red Caps, Philadelphia Athletics (AA) |
| Chuck Rowland | May 11, 1923 | August 19, 1923 | Catcher | Philadelphia Athletics |
| Mike Rowland | July 25, 1980 | October 3, 1981 | Pitcher | San Francisco Giants |
| Rich Rowland | September 7, 1990 | June 19, 1995 | Catcher | Detroit Tigers, Boston Red Sox |
| Ryan Rowland-Smith | June 22, 2007 | | Pitcher | Seattle Mariners |
| Jim Roxburgh | May 30, 1884 | May 5, 1887 | Catcher | Baltimore Orioles (19th century), Philadelphia Athletics (AA) |
| Charlie Roy | June 27, 1906 | August 10, 1906 | Pitcher | Philadelphia Phillies |
| Emil Roy | September 30, 1933 | September 30, 1933 | Pitcher | Philadelphia Athletics |
| Jean-Pierre Roy | May 5, 1946 | May 11, 1946 | Pitcher | Brooklyn Dodgers |
| Luther Roy | June 12, 1924 | October 5, 1929 | Pitcher | Cleveland Indians, Chicago Cubs, Philadelphia Phillies, Brooklyn Robins |
| Normie Roy | April 23, 1950 | September 27, 1950 | Pitcher | Boston Braves |
| Stan Royer | September 11, 1991 | July 22, 1994 | Third baseman | St. Louis Cardinals, Boston Red Sox |
| Jerry Royster | August 14, 1973 | September 28, 1988 | Utility player | Los Angeles Dodgers, Atlanta Braves, San Diego Padres, Chicago White Sox, New York Yankees |
| Willie Royster | September 3, 1981 | October 2, 1981 | Catcher | Baltimore Orioles |
| Dick Rozek | April 29, 1950 | May 16, 1954 | Pitcher | Cleveland Indians, Philadelphia Athletics |
| Dave Rozema | April 11, 1977 | April 30, 1986 | Pitcher | Detroit Tigers, Texas Rangers |
| Vic Roznovsky | June 28, 1964 | October 1, 1969 | Catcher | Chicago Cubs, Baltimore orioles, Philadelphia Phillies |
| Wilkin Ruan | September 1, 2002 | September 28, 2003 | Outfielder | Los Angeles Dodgers |
| Al Rubeling | April 16, 1940 | October 1, 1944 | Third baseman | Philadelphia Athletics, Pittsburgh Pirates |
| Sonny Ruberto | May 25, 1969 | September 24, 1972 | Catcher | San Diego Padres, Cincinnati Reds |
| Jorge Rubio | April 21, 1966 | May 1, 1967 | Pitcher | California Angels |
| Art Ruble | April 18, 1927 | May 13, 1934 | Outfielder | Detroit Tigers, Philadelphia Phillies |
| Dave Rucker | April 12, 1981 | October 2, 1988 | Pitcher | Detroit Tigers, St. Louis Cardinals, Philadelphia Phillies, Pittsburgh Pirates |
| Johnny Rucker | April 16, 1940 | September 29, 1946 | Outfielder | New York Giants |
| Nap Rucker | April 15, 1907 | September 13, 1916 | Pitcher | Brooklyn Superbas/Dodgers/Robins |
| John Rudderham | September 18, 1884 | September 18, 1884 | Outfielder | Boston Reds (UA) |
| Joe Rudi | April 11, 1967 | October 3, 1982 | Outfielder | Kansas City/Oakland Athletics, California Angels, Boston Red Sox |
| Dick Rudolph | September 30, 1910 | September 11, 1927 | Pitcher | New York Giants, Boston Braves |
| Don Rudolph | September 21, 1957 | October 3, 1964 | Pitcher | Chicago White Sox, Cincinnati Reds, Cleveland Indians, Washington Senators (1961–1971) |
| Dutch Rudolph | July 3, 1903 | July 17, 1904 | Outfielder | Philadelphia Phillies, Chicago Cubs |
| Ernie Rudolph | June 16, 1945 | July 6, 1945 | Pitcher | Brooklyn Dodgers |
| Ken Rudolph | April 20, 1969 | September 7, 1977 | Catcher | Chicago Cubs, St. Louis Cardinals, San Francisco Giants, Baltimore Orioles |
| Matt Ruebel | May 21, 1996 | July 4, 1998 | Pitcher | Pittsburgh Pirates, Tampa Bay Devil Rays |
| Muddy Ruel | May 29, 1915 | August 25, 1934 | Catcher | St. Louis Browns, New York Yankees, Boston Red Sox, Washington Senators, Detroit Tigers, Chicago White Sox |
| Kirk Rueter | July 7, 1993 | July 29, 2005 | Pitcher | Montreal Expos, San Francisco Giants |
| Dutch Ruether | April 13, 1917 | September 29, 1927 | Pitcher | Chicago Cubs, Cincinnati Reds, Brooklyn Robins, Washington Senators, New York Yankees |
| Rudy Rufer | September 22, 1949 | October 1, 1950 | Shortstop | San Francisco Giants |
| Scott Ruffcorn | June 19, 1993 | August 17, 1997 | Pitcher | Chicago White Sox, Philadelphia Phillies |
| Bruce Ruffin | June 28, 1986 | June 26, 1997 | Pitcher | Philadelphia Phillies, Milwaukee Brewers, Colorado Rockies |
| Chance Ruffin | July 25, 2011 | | Pitcher | Detroit Tigers, Seattle Mariners |
| Johnny Ruffin | August 8, 1993 | August 2, 2001 | Pitcher | Cincinnati Reds, Arizona Diamondbacks, Florida Marlins |
| Red Ruffing β | May 31, 1924 | September 15, 1947 | Pitcher | Boston Red Sox, New York Yankees, Chicago White Sox |
| Justin Ruggiano | September 19, 2007 | | Outfielder | Tampa Bay Devil Rays/Rays |
| Vern Ruhle | September 9, 1974 | October 4, 1986 | Pitcher | Detroit Tigers, Houston Astros, Cleveland Indians, California Angels |
| Carlos Ruiz | May 6, 2006 | | Catcher | Philadelphia Phillies |
| Chico Ruiz (1964–71 IF) | April 13, 1964 | August 3, 1971 | Utility infielder | Cincinnati Reds, California Angels |
| Chico Ruiz (1978–80 IF) | July 29, 1978 | September 25, 1980 | Utility infielder | Atlanta Braves |
| Randy Ruiz | August 1, 2008 | | Designated hitter | Minnesota Twins, Toronto Blue Jays |
| Joe Rullo | September 22, 1943 | July 4, 1944 | Second baseman | Philadelphia Athletics |
| William Rumler | May 4, 1914 | September 27, 1917 | Utility player | St. Louis Browns |
| Rich Rundles | September 3, 2008 | | Pitcher | Cleveland Indians |
| Paul Runge | September 25, 1981 | September 12, 1988 | Utility infielder | Atlanta Braves |
| Tom Runnells | August 10, 1985 | June 6, 1986 | Shortstop | Cincinnati Reds |
| Pete Runnels | July 1, 1953 | May 14, 1964 | Utility infielder | Washington Senators, Boston Red Sox, Houston Colt .45s |
| Sean Runyan | March 31, 1998 | September 9, 2000 | Pitcher | Detroit Tigers |
| Dan Runzler | September 4, 2009 | | Pitcher | San Francisco Giants |
| Josh Rupe | September 16, 2005 | | Pitcher | Texas Rangers, Kansas City Royals, Baltimore Orioles |
| Ryan Rupe | May 5, 1999 | June 27, 2003 | Pitcher | Tampa Bay Devil Rays, Boston Red Sox |
| Glendon Rusch | April 6, 1997 | | Pitcher | Kansas City Royals, New York Mets, Milwaukee Brewers, Chicago Cubs, San Diego Padres, Colorado Rockies |
| Andy Rush | April 16, 1925 | May 25, 1925 | Pitcher | Brooklyn Robins |
| Bob Rush | April 22, 1948 | August 7, 1960 | Pitcher | Chicago Cubs, Milwaukee Braves, Chicago White Sox |
| Jim Rushford | September 3, 2002 | September 29, 2002 | Outfielder | Milwaukee Brewers |
| Amos Rusie β | May 9, 1889 | June 9, 1901 | Pitcher | Indianapolis Hoosiers (NL), New York Giants, Cincinnati Reds |
| Scott Ruskin | April 9, 1990 | September 16, 1993 | Pitcher | Pittsburgh Pirates, Montreal Expos, Cincinnati Reds |
| John Russ | July 4, 1882 | July 4, 1882 | Pitcher | Baltimore Orioles (19th century) |
| Adam Russell | June 17, 2008 | | Pitcher | Chicago White Sox, San Diego Padres, Tampa Bay Rays |
| Allen Russell | September 13, 1915 | September 19, 1925 | Pitcher | New York Yankees, Boston Red Sox, Washington Senators |
| Bill Russell | April 7, 1969 | October 1, 1986 | Shortstop | Los Angeles Dodgers |
| Harvey Russell | April 17, 1914 | October 3, 1915 | Catcher | Baltimore Terrapins |
| Jack Russell | May 5, 1926 | August 7, 1940 | Pitcher | Boston Red Sox, Cleveland Indians, Washington Senators, Detroit Tigers, Chicago Cubs, St. Louis Cardinals |
| James Russell | April 5, 2010 | | Pitcher | Chicago Cubs |
| Jeff Russell | August 13, 1983 | September 27, 1996 | Pitcher | Cincinnati Reds, Texas Rangers, Oakland Athletics, Boston Red Sox, Cleveland Indians |
| Jim Russell | September 12, 1942 | October 1, 1951 | Outfielder | Pittsburgh Pirates, Boston Braves, Brooklyn Dodgers |
| John Russell (P) | July 4, 1917 | June 12, 1922 | Pitcher | Brooklyn Robins, Chicago White Sox |
| John Russell (C) | June 22, 1984 | October 2, 1993 | Catcher | Philadelphia Phillies, Atlanta Braves, Texas Rangers |
| Lefty Russell | October 1, 1910 | May 28, 1912 | Pitcher | Philadelphia Athletics |
| Lloyd Russell | April 26, 1938 | May 7, 1938 | Pinch runner | Cleveland Indians |
| Paul Russell | July 29, 1894 | August 4, 1894 | Utility player | St. Louis Browns (NL) |
| Reb Russell | April 18, 1913 | September 30, 1923 | Pitcher | Chicago White Sox, Pittsburgh Pirates |
| Rip Russell | May 5, 1939 | July 13, 1947 | First baseman | Chicago Cubs, Boston Red Sox |
| Kevin Russo | May 8, 2010 | | Utility player | New York Yankees |
| Marius Russo | June 6, 1939 | August 4, 1946 | Pitcher | New York Yankees |
| Dick Rusteck | June 10, 1966 | October 2, 1966 | Pitcher | New York Mets |
| Hank Ruszkowski | September 26, 1944 | September 20, 1947 | Catcher | Cleveland Indians |
| Babe Ruth β | July 11, 1914 | May 30, 1935 | Outfielder | Boston Red Sox, New York Yankees, Boston Braves |
| Jim Rutherford | July 12, 1910 | July 12, 1910 | Outfielder | Cleveland Naps |
| Johnny Rutherford | April 30, 1952 | September 23, 1952 | Pitcher | Brooklyn Dodgers |
| Dick Ruthven | April 17, 1973 | May 1, 1986 | Pitcher | Philadelphia Phillies, Atlanta Braves, Chicago Cubs |
| Mickey Rutner | September 11, 1947 | September 28, 1947 | Third baseman | Philadelphia Athletics |
| Mark Ryal | September 7, 1982 | October 3, 1990 | Outfielder | Kansas City Royals, Chicago White Sox, California Angels, Philadelphia Phillies, Pittsburgh Pirates |
| Rusty Ryal | August 10, 2009 | | Utility infielder | Arizona Diamondbacks |
| B. J. Ryan | July 28, 1999 | | Pitcher | Cincinnati Reds, Baltimore Orioles, Toronto Blue Jays |
| Blondy Ryan | July 13, 1930 | July 31, 1938 | Shortstop | Chicago White Sox, New York Giants, Philadelphia Phillies, New York Yankees |
| Brendan Ryan | June 2, 2007 | | Shortstop | St. Louis Cardinals, Seattle Mariners |
| Buddy Ryan | April 11, 1912 | October 5, 1913 | Outfielder | Cleveland Naps |
| Connie Ryan | April 14, 1942 | April 19, 1954 | Second baseman | New York Giants, Boston Braves, Cincinnati Reds, Cincinnati Reds, Philadelphia Phillies, Chicago White Sox, Cincinnati Redlegs |
| Cyclone Ryan | August 8, 1887 | May 8, 1891 | First baseman | New York Metropolitans, Boston Beaneaters |
| Dusty Ryan | September 4, 2008 | | Catcher | Detroit Tigers |
| Jack Ryan (C) | September 2, 1889 | October 4, 1913 | Catcher | Louisville Colonels, Boston Beaneaters, Brooklyn Bridegrooms, Baltimore Orioles (19th century), St. Louis Cardinals, Washington Senators |
| Jack Ryan (P) | July 2, 1908 | May 9, 1911 | Pitcher | Cleveland Naps, Boston Red Sox, Brooklyn Dodgers |
| Jack Ryan (OF) | June 18, 1929 | June 20, 1929 | Outfielder | Boston Red Sox |
| Jason Ryan | August 24, 1999 | October 1, 2000 | Pitcher | Minnesota Twins |
| Jimmy Ryan | October 8, 1885 | September 24, 1903 | Outfielder | Chicago White Stockings, Chicago Pirates, Chicago Colts/Orphans, Washington Senators |
| John Ryan | April 19, 1884 | August 27, 1884 | Pitcher | Baltimore Monumentals |
| Johnny Ryan | August 19, 1873 | July 12, 1877 | Outfielder | Philadelphia White Stockings, Baltimore Canaries, New Haven Elm Citys, Louisville Grays, Cincinnati Reds (1876–1880) |
| Ken Ryan | August 31, 1992 | May 15, 1999 | Pitcher | Boston Red Sox, Philadelphia Phillies |
| Michael Ryan | September 20, 2002 | | Outfielder | Minnesota Twins, Los Angeles Angels of Anaheim |
| Mike Ryan (3B) | July 25, 1895 | July 27, 1895 | Third baseman | St. Louis Browns (NL) |
| Mike Ryan (C) | October 3, 1964 | September 10, 1974 | Catcher | Boston Red Sox, Philadelphia Phillies, Pittsburgh Pirates |
| Nolan Ryan β | September 11, 1966 | September 22, 1993 | Pitcher | New York Mets, California Angels, Houston Astros, Texas Rangers |
| Rob Ryan | August 20, 1999 | October 7, 2001 | Outfielder | Arizona Diamondbacks, Oakland Athletics |
| Rosy Ryan | September 7, 1919 | September 17, 1933 | Pitcher | New York Giants, Boston Braves, New York Yankees, Brooklyn Dodgers |
| Mike Ryba | September 22, 1935 | August 29, 1946 | Pitcher | St. Louis Cardinals, Boston Red Sox |
| Tom Ryder | July 22, 1884 | August 6, 1884 | Outfielder | St. Louis Maroons |
| Gene Rye | April 22, 1931 | June 6, 1931 | Outfielder | Boston Red Sox |
| Gary Ryerson | June 28, 1972 | September 3, 1973 | Pitcher | Milwaukee Brewers |
| Jae Kuk Ryu | May 14, 2006 | April 9, 2008 | Pitcher | Chicago Cubs, Tampa Bay Devil Rays/Rays |
| Marc Rzepczynski | July 7, 2009 | | Pitcher | Toronto Blue Jays, St. Louis Cardinals |