# List of Major League Baseball umpires

The following is a list of baseball umpires who officiated in Major League Baseball (MLB). The list includes those who worked in any of four 19th century major leagues (American Association, National Association, Players' League, Union Association), one defunct 20th century major league (Federal League), the currently active Major League Baseball, or either of its leagues (American League, National League) when they maintained separate umpiring staffs. All of the above leagues, with the exception of the National Association, are recognized by MLB’s Special Baseball Records Committee. The NA’s status as a major league is disputed, with some researchers such as those involved with Retrosheet including it in their major league statistics.
In 2020, MLB recognized seven leagues within Negro league baseball as major leagues: the first and second Negro National Leagues (1920–1931 and 1933–1948), the Eastern Colored League (1923–1928), the American Negro League (1929), the East–West League (1932), the Negro Southern League (1932), and the Negro American League (1937–1948). The Society for American Baseball Research considers the NAL’s 1949 and 1950 seasons to also be major league seasons, with Retrosheet including 1949 in their statistics. Records of the Negro major leagues are not as complete compared to other major leagues, and therefore information about the umpires who worked in those leagues is often unavailable.
Umpires who worked in the National Association are considered MLB umpires for the purposes of this list. Umpires who worked in the recognized Negro major leagues may also be added.

## Key

Name :
| ^ | Currently active |
| * | Hall of Fame inductee, for umpiring |
| § | Hall of Fame inductee, for playing career |
| † | Former major league player |
| ‡ | Active player who filled in as umpire |
League :
| AA | American Association (1882–1891) |
| AL | American League (1901–1999) |
| ANL | American Negro League (1929) |
| ECL | Eastern Colored League (1923–1928) |
| EWL | East–West League (1932) |
| FL | Federal League (1914–1915) |
| MLB | Major League Baseball (2000–present) |
| NA | National Association (1871–1875) |
| NAL | Negro American League (1937–1948) |
| NL | National League (1876–1999) |
| NNL I | Negro National League (1920–1931) |
| NNL II | Negro National League (1933–1948) |
| NSL | Negro Southern League (1932) |
| PL | Players' League (1890) |
| UA | Union Association (1884) |
Years :
* Years, or range of years, that the umpire was active.
Games :
* Number of regular season games umpired (through end of 2024). If the umpire has worked in multiple major leagues, the total is inclusive of all leagues.

## A—B
### A

A :
| Name | League(s) | Years | Games |
| Charlie Abbey‡ | NL | 1897 | 2 |
| Fred Abbott‡ | NL | 1905 | 2 |
| Clarence Adams | NL | 1976 | 1 |
| Harry Adams | NL, AL | 1897, 1903 | 16 |
| Ryan Additon^ | MLB | 2017–present | 736 |
| Bob Addy‡ | NA | 1875 | 1 |
| Adler | UA | 1884 | 2 |
| Ham Allen† | NL | 1876 | 1 |
| Andy Allison‡† | NA | 1872, 1874 | 3 |
| Art Allison‡ | NA | 1871–1872, 1875 | 3 |
| Doug Allison‡ | NA | 1872–1873, 1875 | 4 |
| Dave Alston | NA | 1871–1872, 1875 | 4 |
| Nick Altrock‡ | AL | 1907 | 1 |
| Andy Anderson | NL | 1978–1979 | 19 |
| Dave Anderson‡ | NL | 1890 | 1 |
| Ollie Anderson | FL | 1914 | 152 |
| Bill Andress | NL | 1979 | 3 |
| Ed Andrews‡† | NL | 1889, 1895, 1898–1899 | 206 |
| Bill Annan | NA | 1873 | 1 |
| Merle Anthony | AL | 1969–1975 | 965 |
| Mark Arata | AL | 1991 | 1 |
| Ramon Armendariz | MLB | 2004–2007 | 61 |
| Billy Arnold† | NA | 1875 | 1 |
| Frank Arnold | AA | 1889 | 1 |
| David Arrieta^ | MLB | 2020–present | 104 |
| Tug Arundel‡ | NL | 1888 | 1 |
| Dave Aschwege | MLB | 2003–2004 | 47 |
| Emmett Ashford | AL | 1966–1970 | 810 |
| Ed Austin | AA | 1890 | 1 |
| Nick Avants | AL | 1970–1971 | 18 |
| Ham Avery | NA | 1874–1875 | 9 |
| A.D. Ayers | NL | 1876 | 1 |

#### Games per league

* ↑ 1 (NL, 1897), 15 (AL, 1903)

### B

B :
| Name | League(s) | Years | Games |
| Erich Bacchus^ | MLB | 2020–present | 462 |
| John Bacon^ | MLB | 2019–present | 297 |
| John Baird | NL | 1979, 1981 | 14 |
| Bill Baker† | NL | 1957 | 153 |
| Charles Baker | NL | 1884 | 1 |
| Jordan Baker^ | MLB | 2012–present | 1404 |
| Phil Baker† | NL | 1889 | 5 |
| Jersey Bakley‡ | AA, PL | 1888, 1890 | 2 |
| Kid Baldwin‡ | AA | 1887 | 1 |
| Mark Baldwin‡ | AA | 1892 | 1 |
| Lee Ballanfant | NL | 1936–1957 | 3214 |
| Frank Ballina | NL | 1991, 1995 | 7 |
| Brock Ballou^ | MLB | 2022–present | 144 |
| Jimmy Bannon‡ | NL | 1894 | 1 |
| Sean Barber^ | MLB | 2014–present | 1040 |
| Al Barker† | NL | 1881 | 3 |
| Lance Barksdale^ | MLB | 2000–present | 2978 |
| Al Barlick* | NL | 1940–1943, 1946–1955, 1958–1971 | 4231 |
| Tom Barlow‡ | NA | 1875 | 2 |
| Ron Barnes | NL, MLB | 1990–1997, 2001–2002 | 352 |
| Ross Barnes‡† | NA, PL | 1874, 1890 | 58 |
| Larry Barnett | AL | 1969–1999 | 4281 |
| Billy Barnie† | AA, NL | 1882, 1884, 1887, 1889, 1892 | 17 |
| George Barnum | AA, NL | 1890, 1896 | 48 |
| George Barr | NL | 1931–1949 | 2759 |
| Bill Barrett‡† | NA | 1872, 1874 | 4 |
| Lance Barrett^ | MLB | 2010–present | 1438 |
| Ted Barrett | AL, MLB | 1994–2022 | 3400 |
| Mark Barron | NL, MLB | 1992–1997, 2001–2002 | 310 |
| Frank Barrows† | NA | 1872 | 3 |
| Dan Barry | AL | 1928 | 132 |
| Scott Barry^ | MLB | 2006–2019, 2021–present | 1785 |
| Mike Barston | NL | 1979 | 1 |
| Steve Basil | AL | 1936–1942 | 1037 |
| Toby Basner | MLB | 2012–2017 | 349 |
| Jack Baswell | NL | 1979 | 1 |
| Joe Battin‡† | NA, AA, NL | 1874, 1882, 1886, 1891, 1895–1896 | 55 |
| Al Bauer† | AA | 1887, 1890 | 32 |
| George Bausewine† | NL | 1905 | 123 |
| Damien Beal | MLB | 2007–2010 | 74 |
| Tommy Beals‡ | NA | 1872, 1874–1875 | 8 |
| Ed Bean | AL | 1994 | 36 |
| Ollie Beard† | NL | 1894 | 2 |
| John Beardsley | NA | 1871–1873 | 14 |
| Ed Beatin‡ | NL | 1889 | 1 |
| Billy Becannon | AA | 1883 | 12 |
| Buck Becannon‡ | AA, NL | 1884–1885 | 2 |
| George Bechtel‡ | NA | 1874 | 2 |
| Adam Beck^ | MLB | 2020–present | 488 |
| Bob Beck | NL | 1979 | 6 |
| Erve Beck‡ | NL | 1902 | 1 |
| Jake Beckley$^§$‡ | NL | 1906 | 1 |
| Fred Beebe‡ | NL | 1907 | 1 |
| W. S. Beebe | NA | 1872 | 1 |
| Frank Behle | NL | 1895–1896, 1901 | 8 |
| Ollie Bejma‡ | AL | 1935 | 1 |
| Frank Bell† | AA | 1889 | 2 |
| Wally Bell | NL, MLB | 1992–2013 | 2760 |
| Dan Bellino^ | MLB | 2008–present | 1745 |
| Joe Bendekovits | NL | 1979 | 1 |
| Chief Bender$^§$‡ | AL | 1907 | 1 |
| Jack Bennett | NL | 1893 | 2 |
| Frederick Berger | NL | 1886 | 1 |
| Tun Berger‡ | NL | 1891 | 1 |
| Bill Bernhard‡ | AL | 1903, 1907 | 4 |
| Charlie Berry† | AL | 1942–1962 | 3080 |
| Henry Berthrong‡ | NA | 1872 | 1 |
| Ralph Betcher | NL | 1976 | 1 |
| William Betts | NL, AL | 1894–1896, 1898–1899, 1901, 1903 | 133 |
| Monte Beville‡ | AL | 1903–1904 | 2 |
| Larry Bialorucki | AL | 1995 | 7 |
| Jon Bible | AL | 1984 | 0 |
| Oscar Bielaski‡ | NA | 1874–1875 | 2 |
| Bits Bierhalter | AL | 1918–1919, 1922, 1924 | 4 |
| W. J. Bigelow | NA, NL | 1875, 1877 | 2 |
| Dave Birdsall‡ | NA | 1873–1874 | 4 |
| Homer Bishop | AL | 1979 | 1 |
| Red Bittmann‡† | AA, NL | 1889, 1892, 1894–1895, 1897 | 9 |
| William Blair | NA | 1873 | 1 |
| Bob Blakiston‡ | NL | 1884 | 2 |
| Ryan Blakney^ | MLB | 2015–present | 1120 |
| Fred Blandford | NL | 1970 | 1 |
| Cliff Blankenship‡ | AL | 1907 | 1 |
| Cory Blaser^ | MLB | 2010–present | 1564 |
| William Blodgett | NA, NL | 1875–1876 | 15 |
| Wes Blogg† | AA | 1886 | 1 |
| Ed Bloom | AA | 1887 | 1 |
| Ossie Bluege‡ | AL | 1938 | 1 |
| Virgil Blueitt | NAL | 1937–1948 | |
| John Boake | NA | 1871 | 2 |
| Frederick Boardman† | NA | 1875 | 7 |
| Dusty Boggess | NL | 1944–1948, 1950–1962 | 2590 |
| Matt Bohn | AL | 1995 | 6 |
| Charles Boles | NL | 1877 | 5 |
| Theo Bomeisler | NA | 1871–1875 | 23 |
| Tommy Bond‡ | NA, NL, AA | 1875, 1883–1885, 1891 | 28 |
| Greg Bonin | NL, MLB | 1984–2001 | 1746 |
| Frank Bonner‡ | NL | 1894 | 1 |
| Amos Booth‡ | AA | 1882 | 1 |
| Steve Borga | AL | 1979 | 3 |
| Nicholas Bouse | NA | 1871 | 1 |
| Terry Bovey | NL | 1979, 1984, 1995 | 22 |
| Bill Boyd‡ | NA | 1873, 1875 | 21 |
| Jim Boyer | AL | 1944–1950 | 1026 |
| Henry Boyle‡ | NL | 1886 | 1 |
| Jack Boyle‡ | AA, NL | 1888, 1892, 1897 | 5 |
| Foghorn Bradley† | NA, NL, AA | 1875, 1879–1883, 1886 | 345 |
| George Bradley‡ | UA | 1884 | 1 |
| Brady | NL | 1877 | 3 |
| Jackson Brady | NL | 1887 | 7 |
| Asa Brainard‡† | NA | 1872, 1875 | 2 |
| Kitty Bransfield† | NL | 1917 | 156 |
| A. C. Bredberg | NL | 1877–1879 | 12 |
| Ted Breitenstein‡ | NL | 1900 | 2 |
| Nick Bremigan | AL | 1974–1988 | 2122 |
| Bill Brennan | NL, FL | 1909–1915, 1921 | 1093 |
| Jack Brennan‡ (1880s catcher) | AA | 1888 | 2 |
| Jack Brennan (umpire) | AA, NL | 1884, 1887, 1899 | 79 |
| Warren Briggs | NA | 1874 | 1 |
| Joe Brinkman | AL, MLB | 1972–2006 | 4505 |
| Fatty Briody† | NL | 1881 | 1 |
| Mike Briscese | AL | 1979 | 10 |
| Fred Brocklander | NL | 1979–1990 | 1514 |
| John Brockway | NL | 1877, 1879 | 3 |
| Bud Brown | AL | 1979 | 3 |
| Doug Brown | AL | 1979 | 7 |
| J. Brown | AA | 1887 | 1 |
| Jeff Brown | AL | 1978–1979 | 10 |
| Sam Brown‡ | NL | 1907 | 1 |
| Tom Brown† | NL, AL | 1898–1899, 1901–1902, 1907 | 318 |
| William Brown | NA | 1872 | 1 |
| David Bruce | NA | 1875 | 1 |
| Randy Bruns | NL | 1991 | 1 |
| William Buchanan | NL | 1998 | 1 |
| William Buck | NA | 1871 | 1 |
| Al Buckenberger | NL | 1890 | 1 |
| Seth Buckminster | MLB | 2014–2015 | 67 |
| C. B. Bucknor^ | NL, MLB | 1996–present | 3271 |
| Charlie Buelow‡ | NL | 1901 | 1 |
| Fritz Buelow‡ | AL | 1906 | 1 |
| Charlie Buffinton‡ | NL | 1883, 1888–1889, 1892 | 4 |
| Charles Bullymore | NL | 1882 | 2 |
| Fred Bunce | NA | 1874 | 1 |
| H. C. Bunce | NA | 1872 | 1 |
| Josh Bunce‡ | NL | 1877 | 7 |
| Jack Burdock‡ | NA, NL, AA | 1872–1874, 1881, 1887 | 22 |
| Ken Burkhart† | NL | 1957–1973 | 2700 |
| Frank Burlingame | NL, UA | 1878, 1884 | 2 |
| Watch Burnham | NL | 1883, 1886–1887, 1889, 1895 | 107 |
| John Burns | NL | 1884 | 71 |
| Oyster Burns‡† | AA, NL | 1888, 1895, 1899 | 54 |
| Tom Burns† | NL | 1892 | 35 |
| Warren Burtis | NL | 1876–1877 | 25 |
| Archie Bush | NA | 1871 | 2 |
| Garnet Bush | NL, FL | 1911–1912, 1914 | 145 |
| Doc Bushong‡ | NL, AA | 1880–1881, 1888–1890 | 12 |
| Dick Butler‡ | NL | 1897 | 5 |
| Nathan Butler | AA | 1889 | 1 |
| Ormond Butler | AA | 1883, 1886 | 15 |
| Jon Byrne | MLB | 2014 | 9 |
| Walter Byrne | AA | 1882 | 1 |
| Lord Byron | NL | 1913–1919 | 1010 |

#### Games per league

* ↑ 1 (AA, 1888), 1 (PL, 1890)
* ↑ 295 (NL, 1990–97), 57 (MLB, 2001–02)
* ↑ 2 (NA, 1874), 56 (PL, 1890)
* ↑ 5 (AA, 1882, 1884, 1887, 1889), 12 (NL, 1882, 1892)
* ↑ 47 (AA, 1890), 1 (NL, 1896)
* ↑ 524 (AL, 1994–99), 2876 (MLB, 2000–22)
* ↑ 188 (NL, 1992–97), 122 (MLB, 2001–02)
* ↑ 1 (NA, 1874), 6 (AA, 1882, 1886), 48 (NL, 1891, 1895–96)
* ↑ 1 (AA, 1884), 1 (NL, 1885)
* ↑ 899 (NL, 1992–99), 1861 (MLB, 2000–13)
* ↑ 121 (NL, 1894–96, 1898–99), 12 (AL, 1901, 1903)
* ↑ 1 (NA, 1875), 1 (NL, 1877)
* ↑ 1 (AA, 1889), 8 (NL, 1892, 1894–95, 1897)
* ↑ 9 (NA, 1875), 6 (NL, 1876)
* ↑ 1 (NA, 1875), 25 (NL, 1883, 1885), 2 (AA, 1884, 1891)
* ↑ 1660 (NL, 1984–99), 86 (MLB, 2000–01)
* ↑ 1 (AA, 1888), 4 (NL, 1892, 1897)
* ↑ 1 (NA, 1875), 266 (NL, 1879–83), 78 (AA, 1886)
* ↑ 772 (NL, 1909–13, 1921), 321 (FL, 1914–15)
* ↑ 54 (AA, 1884), 25 (NL, 1887, 1899)
* ↑ 3782 (AL, 1972–99), 723 (MLB, 2000–06)
* ↑ 306 (NL, 1898–99, 1901–02), 12 (AL, 1907)
* ↑ 231 (NL, 1996–99), 3040 (MLB, 2000–present)
* ↑ 20 (NA, 1872–74), 1 (NL, 1881), 1 (AA, 1887)
* ↑ 1 (NL, 1878), 1 (UA, 1884)
* ↑ 1 (AA, 1888), 53 (NL, 1895, 1899)
* ↑ 100 (NL, 1911–12), 45 (FL, 1914)
* ↑ 6 (NL, 1880–81, 1890), 6 (AA, 1888–89)

## C—E
### C

C :
| Name | League(s) | Years | Games |
| Ed Callahan‡† | NL, UA | 1881, 1884 | 30 |
| Nixey Callahan‡ | AL | 1901 | 1 |
| Frank Campagna | NL | 1979, 1984 | 18 |
| Bick Campbell | AL, NL | 1928–1931, 1938–1940 | 936 |
| Bob Campbell | AL | 1979 | 4 |
| Dan Campbell | AA, NL | 1890, 1894–1897 | 67 |
| Angel Campos | MLB | 2007–2014 | 585 |
| Joe Cantillon | AL, NL | 1901–1902 | 207 |
| Joe Caraco | AL | 1995 | 7 |
| Vic Carapazza^ | MLB | 2010–present | 1676 |
| Tom Carey‡† | NA, AA | 1873–1875, 1882 | 38 |
| Billy Carlin | AA | 1885–1886, 1888–1889 | 49 |
| Mark Carlson^ | NL, MLB | 1999–present | 2998 |
| John Carney‡ | PL | 1890 | 1 |
| Red Carney | AL | 1924 | 1 |
| Bill Carpenter | NL, AL | 1897, 1904, 1906–1907 | 486 |
| John Carpenter | NA | 1874 | 1 |
| Bill Carrick‡ | NL | 1900 | 1 |
| Sam Carrigan | AL | 1961–1964 | 627 |
| Fred Carroll‡ | NL | 1887 | 1 |
| Pat Carroll‡ | UA | 1884 | 3 |
| Kid Carsey‡ | AA, NL | 1891, 1894, 1896, 1901 | 5 |
| Bob Caruthers‡† | NL, AL | 1886, 1891, 1893, 1902–1903 | 204 |
| Dan Casey‡ | NL | 1888 | 1 |
| Ed Caskin‡† | NL, PL | 1884, 1890 | 2 |
| John Cassidy‡ | NA, NL, AA | 1875, 1882, 1884 | 3 |
| Kevin Causey | MLB | 2006–2009 | 81 |
| Harry Cavanaugh | NA | 1875 | 1 |
| Dick Cavenaugh | NL | 1979, 1984 | 16 |
| Gary Cederstrom | AL, MLB | 1989–2019 | 3579 |
| Nestor Ceja^ | MLB | 2020–present | 488 |
| Ice Box Chamberlain‡ | AA, NL | 1887, 1891, 1894 | 3 |
| Frank Chance$^§$‡ | NL | 1902 | 1 |
| Moses Chandler | NA, NL | 1872–1874, 1877 | 6 |
| Jack Chapman‡† | NA, NL | 1871, 1873–1874, 1876, 1880, 1882 | 30 |
| John Cheppu | NL | 1876 | 1 |
| Ollie Chill | AL | 1914–1916, 1919–1922 | 1028 |
| Harry Chipman | NL | 1883, 1885–1886 | 9 |
| Randy Christal | AL | 1984 | 0 |
| Nestor Chylak* | AL | 1954–1978 | 3857 |
| Bobby Clack‡ | NL | 1876 | 5 |
| John Clapp‡ | NA | 1874–1875 | 14 |
| Al Clark | AL, MLB | 1976–2001 | 3392 |
| Bob Clark† | NL | 1897 | 1 |
| Artie Clarke‡ | NL | 1890 | 1 |
| Bob Clarke | NL | 1930–1931 | 244 |
| Boileryard Clarke‡ | NL | 1893–1894, 1896 | 4 |
| Dad Clarkson‡ | NL | 1893–1896 | 7 |
| John Clarkson‡ | NL | 1888, 1890, 1892–1893 | 4 |
| Dick Clegg´ | AL | 1979 | 20 |
| Curly Clement | AL | 1978–1979 | 2 |
| Paul Clemons^ | MLB | 2020–present | 247 |
| Jim Clinton‡ | NA, AA | 1873, 1875, 1886 | 19 |
| Drew Coble | AL | 1982–1999 | 2303 |
| George Cockill | NL | 1915 | 61 |
| Al Cohen | NL | 1976 | 2 |
| Colby | NA | 1873 | 1 |
| John Coleman‡ | NL | 1884 | 1 |
| Harry Colgan | NL | 1899, 1901 | 13 |
| Harry Colliflower† | AL | 1910 | 46 |
| Dan Collins‡† | NA, NL | 1875–1876 | 2 |
| Delfin Colon | MLB | 2008–2009 | 46 |
| Nick Colosi | NL | 1968–1982 | 2063 |
| Charlie Comiskey$^§$‡ | PL | 1890 | 1 |
| Craig Compton | AL | 1995 | 5 |
| Ed Conahan | NL | 1896 | 10 |
| Fred Cone† | NA, NL | 1873–1877 | 23 |
| Jocko Conlan*† | AL, NL | 1935, 1941–1965 | 3623 |
| Jack Conn | NL | 1979 | 1 |
| Connell | AA | 1891 | 1 |
| Terry Connell† | AA, NL | 1884–1887, 1889–1890 | 76 |
| Red Connolly | AA, NL | 1884–1887, 1892–1893 | 193 |
| Tom Connolly* | NL, AL | 1898–1931 | 4770 |
| Tom Connor | AL | 1905–1906 | 163 |
| Pat Connors | NL | 1998 | 42 |
| Chris Conroy^ | MLB | 2010–present | 1428 |
| Alan Contant | AL | 1978–1979 | 14 |
| John Conway | NL | 1906 | 155 |
| Dan Coogan‡ | NL | 1895 | 1 |
| R. F. Cook | NL | 1879 | 1 |
| Rob Cook | NL, MLB | 1999–2000 | 31 |
| Johnny Cooney‡ | NL | 1941 | 1 |
| Terry Cooney | AL | 1974–1992 | 2233 |
| Eric Cooper | AL, MLB | 1996–2019 | 2804 |
| Elias Cope | NA | 1871 | 1 |
| Tommy Corcoran† | FL | 1915 | 46 |
| Doug Cossey | AL | 1978–1979, 1984 | 11 |
| Perry Costello | NL | 1995 | 2 |
| Emilien Cote | NL | 1979 | 7 |
| Bill Coughlin‡ | AL | 1904 | 5 |
| Derryl Cousins | AL, MLB | 1979–2012 | 4496 |
| Terry Craft | AL, MLB | 1987–2006 | 1734 |
| Robert Crandall | NL, AA | 1876–1878, 1882 | 17 |
| Ed Crane‡ | NL | 1892–1893 | 5 |
| Sam Crane‡ | NL | 1879, 1886–1887, 1890 | 8 |
| Bill Craver‡ | NA | 1873 | 2 |
| Alexander Crawford | UA, NL | 1884, 1886 | 26 |
| Jerry Crawford | NL, MLB | 1976–2010 | 4371 |
| Shag Crawford | NL | 1956–1975 | 3120 |
| P. C. Cray | NL | 1893 | 1 |
| Ed Creighton | AA | 1889–1890 | 3 |
| Morrie Critchley† | AA | 1884–1885 | 5 |
| Fred Crolius‡ | NL | 1901 | 1 |
| Charles Cromwell | ECL, NNL II | 1923–1927, 1937—1947 | |
| Jack Cronin | AL, NL | 1901–1902 | 4 |
| John Cross | NL | 1876, 1878 | 10 |
| Lave Cross | AA, NL | 1889, 1892 | 2 |
| Monte Cross† | FL | 1914 | 141 |
| Billy Crowell‡ | AA | 1888 | 1 |
| Jim Cudworth† | NL | 1880 | 1 |
| Fieldin Culbreth | AL, MLB | 1993–2019, 2021 | 3140 |
| Dick Culler‡ | NL | 1947 | 1 |
| Jim Cuneo | NL, AL | 1978–1979 | 32 |
| Bert Cunningham‡† | NL | 1896–1897, 1900–1901 | 50 |
| George Cuppy‡ | NL | 1894 | 2 |
| John Curran‡ | NL | 1876 | 1 |
| Frank Curry | AA | 1886 | 2 |
| Wes Curry‡† | AA, NL | 1884–1887, 1889–1890, 1898 | 383 |
| Steve Cusack | NL, FL | 1909, 1914 | 192 |
| Charlie Cushman | NL | 1885, 1894, 1898 | 110 |
| Andy Cusick‡ | NL | 1886–1887 | 4 |
| Ned Cuthbert‡† | NA, UA, AA | 1875, 1884, 1887–1888 | 42 |
| Phil Cuzzi^ | NL, MLB | 1991–1993, 1999–present | 3121 |

#### Games per league

* ↑ 29 (NL, 1881), 1 (UA, 1884)
* ↑ 618 (AL, 1928–31), 318 (NL, 1938–40)
* ↑ 1 (AA, 1890), 66 (NL, 1894–97)
* ↑ 125 (AL, 1901), 82 (NL, 1902)
* ↑ 9 (NA, 1873–75), 29 (AA, 1882)
* ↑ 44 (NL, 1999), 2954 (MLB, 2000–present)
* ↑ 431 (NL, 1897, 1904, 1906–07), 55 (AL, 1904)
* ↑ 1 (AA, 1891), 4 (NL, 1894, 1896, 1901)
* ↑ 11 (NL, 1886, 1891, 1893), 193 (AL, 1902–03)
* ↑ 1 (NL, 1884), 1 (PL, 1890)
* ↑ 1 (NA, 1875), 1 (NL, 1882), 1 (AA, 1884)
* ↑ 1067 (AL, 1989–99), 2512 (MLB, 2000–19)
* ↑ 2 (AA, 1887, 1891), 1 (NL, 1894)
* ↑ 3 (NA, 1872–74), 3 (NL, 1877)
* ↑ 7 (NA, 1873–74, 1876), 23 (NL, 1876, 1880, 1882)
* ↑ 3213 (AL, 1976–99), 179 (MLB, 2000–01)
* ↑ 7 (NA, 1873, 1875), 12 (AA, 1886)
* ↑ 1 (NA, 1875), 1 (NL, 1876)
* ↑ 12 (NA, 1873–75), 11 (NL, 1876–77)
* ↑ 2 (AL, 1935), 3621 (NL, 1941–65)
* ↑ 64 (AA, 1884–86, 1889–90), 12 (NL, 1885, 1887)
* ↑ 132 (AA, 1884–85, 1887), 61 (NL, 1885–87, 1892–93)
* ↑ 317 (NL, 1898–1900), 4453 (AL, 1901–31)
* ↑ 10 (NL, 1999), 21 (MLB, 2000)
* ↑ 254 (AL, 1996–99), 2204 (MLB, 2000–19)
* ↑ 2855 (AL, 1979–99), 1641 (MLB, 2000–12)
* ↑ 1140 (AL, 1987–99), 594 (MLB, 2000–06)
* ↑ 14 (NL, 1876–78), 3 (AA, 1882)
* ↑ 25 (UA, 1884), 1 (NL, 1886)
* ↑ 3178 (NL, 1976–99), 1193 (MLB, 2000–10)
* ↑ 2 (AL, 1901), 2 (NL, 1902)
* ↑ 1 (AA, 1889), 1 (NL, 1892)
* ↑ 531 (AL, 1993–99), 2609 (MLB, 2000–18, 2021)
* ↑ 21 (NL, 1978–79), 11 (AL, 1979)
* ↑ 121 (AA, 1884, 1887, 1890), 262 (NL, 1885–86, 1889, 1898)
* ↑ 51 (NL, 1909), 141 (FL, 1914)
* ↑ 3 (NA, 1875), 1 (UA, 1884), 38 (AA, 1887–88)
* ↑ 120 (NL, 1991–93, 1999), 3001 (MLB, 2000–present)

### D

D :
| Name | League(s) | Years | Games |
| John Dailey† | NL, AA | 1882, 1884, 1889 | 37 |
| Con Daily‡ | PL, NL | 1890–1891, 1894, 1896 | 4 |
| Jerry Dale | NL | 1970–1985 | 1987 |
| Tom Daly‡ | NL | 1901 | 2 |
| Charles F. Daniels | NA, NL, AA | 1874–1876, 1878–1880, 1883–1885, 1887–1889 | 512 |
| Law Daniels‡ | AA | 1887 | 2 |
| Kerwin Danley | NL, MLB | 1992–2019, 2021 | 2656 |
| Dell Darling‡ | NL, AA | 1887, 1891 | 4 |
| Gary Darling | NL, MLB | 1986–1999, 2002–2013 | 3270 |
| Frank Dascoli | NL | 1948–1961 | 2057 |
| Thomas Daubney | NA | 1871 | 1 |
| L. N. David | NA | 1874 | 1 |
| Bob Davidson | NL, MLB | 1982–1999, 2005–2016 | 3908 |
| Dale Davidson | AL | 1979 | 6 |
| Satch Davidson | NL | 1969–1984 | 2262 |
| Bill Davis | NL | 1995 | 7 |
| Bob Davis | NL | 1979 | 3 |
| Gerry Davis | NL, MLB | 1982–2021 | 4849 |
| Harry Davis‡ | AL | 1903 | 1 |
| Jumbo Davis† | AA | 1891 | 68 |
| Mort Dawson | | 1871 | 1 |
| Pat Dealy‡ | NL | 1886 | 2 |
| Harry Deane‡† | NA, NL | 1871, 1874, 1876, 1878 | 7 |
| Stewart Decker | NL | 1883–1885, 1888 | 287 |
| Bill Deegan | AL | 1971–1980, 1984, 1991, 1995 | 1428 |
| Pete DeFlesco | AL | 1991 | 1 |
| Herman Dehlman† | NA | 1873–1875 | 14 |
| Ramon De Jesus^ | MLB | 2016–present | 869 |
| Dusty Dellinger | MLB | 2005–2007 | 30 |
| Vic Delmore | NL | 1956–1959 | 618 |
| D. P. Demorest | NA | 1872–1873 | 3 |
| Dana DeMuth | NL, MLB | 1983–2017, 2019 | 4283 |
| Shan Deniston | NL | 1978 | 1 |
| Don Denkinger | AL | 1969–1998 | 3824 |
| Richard Denny | AL | 1984 | 0 |
| Doll Derr | NL | 1923 | 28 |
| Jim Devine | AA | 1890 | 2 |
| Dan Devinney | NL, AA, UA | 1876–1877, 1884, 1887 | 111 |
| Charlie Devlin | AA | 1888 | 2 |
| Charlie Dexter‡ | NL | 1896–1897 | 3 |
| Frank Dezelan | NL | 1966–1970 | 370 |
| Laz Díaz^ | AL, MLB | 1995, 1997–present | 3218 |
| Roger Dierking | NL | 1978 | 1 |
| Lou DiMuro | AL | 1963–1982 | 2659 |
| Mike DiMuro | AL, MLB | 1997, 1999–2018 | 1877 |
| Ray DiMuro | AL | 1996–1998 | 99 |
| Bill Dinneen‡† | AL | 1907, 1909–1937 | 4217 |
| Hal Dixon | NL | 1953–1959 | 989 |
| Henry Dobson | NA | 1871 | 1 |
| Tom Dolan† | AA | 1890–1891 | 6 |
| W. C. Dole | NA | 1875 | 6 |
| Jim Donahue‡ | AA | 1888 | 2 |
| Red Donahue‡ | NL, AL | 1897, 1903, 1906 | 6 |
| Tim Donahue‡ | NL | 1895–1896 | 2 |
| Augie Donatelli | NL | 1950–1973 | 3776 |
| Mike Donlin‡† | NL, AL | 1900, 1918 | 2 |
| Joe Donnegan | NL | 1881–1882 | 42 |
| Charles Donnelly | NL, AL | 1931–1932, 1934–1935 | 566 |
| Jim Donnelly‡ | NL | 1896 | 3 |
| Michael Donohue | NL | 1930 | 90 |
| Bill Donovan‡ | NL, AL | 1902–1903, 1906 | 3 |
| Timothy Donovan | UA | 1884 | 2 |
| Red Dooin‡ | NL | 1904 | 1 |
| T. E. Dornlach | NA | 1872 | 1 |
| Herm Doscher‡† | NL, AA | 1879–1881, 1887–1888, 1890 | 463 |
| Klondike Douglass‡ | NL | 1903 | 1 |
| Clarence Dow† | AA | 1891 | 1 |
| Adam Dowdy | MLB | 2002–2007 | 326 |
| Tom Dowse‡ | NL | 1890 | 3 |
| Jack Doyle† | NL | 1911 | 42 |
| Rob Drake^ | NL, MLB | 1999–present | 2861 |
| Doc Draper | NA, NL | 1871, 1877 | 3 |
| Bruce Dreckman^ | NL, MLB | 1996–1999, 2002–2011, 2013, 2015, 2017–2019, 2021–present | 2563 |
| Roy Dreke | AL | 1979 | 5 |
| Al Dresser | AL | 1995 | 1 |
| Lew Drill‡ | AL | 1903–1904 | 7 |
| Joe Driscoll | AL | 1978 | 1 |
| Cal Drummond | AL | 1960–1969 | 1357 |
| Ed Ducharme | NL | 1876–1877 | 30 |
| Jim Duffy | AL | 1951–1953 | 449 |
| Ed Dugan† | AA | 1887 | 1 |
| Bill Duggleby‡ | | 1905 | 1 |
| Martin Duke† | AA | 1890 | 1 |
| Dennis Duncan | AL, NL | 1995, 1998 | 7 |
| Fred Dunlap† | NL | 1879 | 1 |
| Hugh Dunlevy | AA | 1887 | 3 |
| Tom Dunn | NL | 1939–1946 | 1142 |
| Jim Dunne | AL | 1978–1979 | 4 |
| Peter Durfee | MLB | 2005 | 4 |
| Patrick Dutton | UA | 1884 | 39 |
| Frank Dwyer‡† | NL, AL | 1889, 1893–1894, 1896–1897, 1899, 1901, 1904 | 345 |
| John Dyler† | AA, NL | 1883–1885, 1892, 1897 | 44 |

#### Games per league

* ↑ 12 (NL, 1882), 25 (AA, 1884, 1889)
* ↑ 1 (PL, 1890), 3 (NL, 1891, 1894, 1896)
* ↑ 28 (NA, 1874–75), 278 (NL, 1876, 1878–80, 1885, 1887–88), 206 (AA, 1883–85, 1889)
* ↑ 398 (NL, 1992–99), 2258 (MLB, 2000–19, 2021)
* ↑ 2 (NL, 1887), 2 (AA, 1891)
* ↑ 1674 (NL, 1986–99), 1596 (MLB, 2002–13)
* ↑ 2339 (NL, 1982–99), 1572 (MLB, 2005–16)
* ↑ 2227 (NL, 1982–99), 2622 (MLB, 2000–21)
* ↑ 3 (NA, 1871, 1874), 4 (NL, 1876, 1878)
* ↑ 2171 (NL, 1983–99), 1927 (MLB, 2000–18, 2019)
* ↑ 26 (NL, 1876–77), 28 (AA, 1884, 1887), 57 (UA, 1884)
* ↑ 135 (AL, 1995, 1997–99), 3083 (MLB, 2000–present)
* ↑ 87 (AL, 1997, 1999), 1790 (MLB, 2000–18)
* ↑ 3 (NL, 1897), 3 (AL, 1903, 1906)
* ↑ 1 (NL, 1900), 1 (AL, 1918)
* ↑ 272 (NL, 1931–32), 294 (AL, 1934–35)
* ↑ 1 (NL, 1902), 2 (AL, 1903, 1906)
* ↑ 233 (NL, 1879–81, 1887), 230 (AA, 1887–88, 1890)
* ↑ 3 (NL, 1999), 2858 (MLB, 2000–present)
* ↑ 2 (NA, 1871), 1 (NL, 1877)
* ↑ 357 (NL, 1996–99) 2206 (MLB, 2002–11, 2013, 2015, 2017–19, 2021–present)
* ↑ 6 (AL, 1995), 1 (NL, 1998)
* ↑ 193 (NL, 1889, 1893–94, 1896–97, 1899, 1901), 152 (AL, 1904)
* ↑ 42 (AA, 1883–85), 2 (NL, 1892, 1897)

### E

E :
| Name | League(s) | Years | Games |
| John Eagan | NL | 1878–1879, 1886 | 45 |
| Billy Earle‡ | NL | 1892, 1894 | 2 |
| Harold Easley | AL | 1979 | 11 |
| Mal Eason‡† | NL | 1902, 1910–1917 | 992 |
| Jack Easton‡ | AA | 1891 | 1 |
| Doug Eddings^ | AL, MLB | 1998–present | 3191 |
| Larry Edwards | NL | 1978 | 1 |
| Rip Egan† | AL | 1903, 1907–1914 | 1048 |
| Red Ehret‡ | AA, NL | 1890, 1892, 1895–1897 | 7 |
| Clarence Eldridge | AL | 1914–1915 | 6 |
| Joe Ellick† | NL, AA | 1886, 1888–1889 | 20 |
| William Ellis | NA | 1871–1872, 1875 | 4 |
| Paul Emmel | AL, MLB | 1999–2017, 2019, 2022–2023 | 2514 |
| Bob Emslie† | AA, NL | 1890–1924 | 4229 |
| Bob Engel | NL | 1965–1990 | 3630 |
| Bill Engeln | NL | 1952–1956 | 751 |
| John English | NA, NL | 1874–1876 | 10 |
| Fred Erby | NA | 1872 | 5 |
| George Eshelman | AL | 1979 | 19 |
| Mike Estabrook^ | MLB | 2006–present | 1849 |
| Billy Evans* | AL | 1906–1927 | 3320 |
| George Evans | NA | 1872 | 1 |
| Jake Evans‡ | NL | 1886 | 1 |
| Jeff Evans | AL | 1991 | 1 |
| Jim Evans | AL | 1971–1999 | 3896 |
| Mike Everitt | AL, MLB | 1996–2019 | 2633 |
| Buck Ewing$^§$‡ | AA | 1882 | 2 |
| John Ewing‡ | AA | 1889 | 1 |

#### Games per league

* ↑ 87 (AL, 1998–99), 3104 (MLB, 2000–present)
* ↑ 1 (AA, 1890), 6 (NL, 1892, 1895–97)
* ↑ 17 (NL, 1886), 3 (AA, 1888–89)
* ↑ 30 (AL, 1999), 2484 (MLB, 2000–17, 2019, 2022–23)
* ↑ 137 (AA, 1890), 4092 (NL, 1891–1924)
* ↑ 9 (NA, 1874–75), 1 (NL, 1876)
* ↑ 199 (AL, 1996–99), 2434 (MLB, 2000–19)

## F—K
### F

F :
| Name | League(s) | Years | Games |
| Clint Fagan | MLB | 2011–2017 | 522 |
| Chad Fairchild^ | MLB | 2004–present | 2236 |
| Anton Falch‡ | UA | 1884 | 1 |
| Mike Farmer | AL | 1979 | 3 |
| Harry Farnsworth | AL | 1979 | 14 |
| Duke Farrell‡ | NL | 1901–1902 | 3 |
| Dick Feaser | AL | 1979 | 5 |
| Fell | AA | 1885 | 1 |
| T. E. Fellows | NA | 1871 | 1 |
| Norman Fenno | NL | 1876 | 1 |
| Bob Ferguson‡† | NA, NL, AA, PL | 1871–1875, 1879, 1884–1891 | 829 |
| Charlie Ferguson‡ (1880s pitcher) | NL | 1886 | 1 |
| Charlie Ferguson† (1900s pitcher) | AL | 1913–1914 | 122 |
| Wallace Fessenden | NL | 1889–1890 | 53 |
| Mike Fichter | AL, MLB | 1999–2005 | 557 |
| Jerry Fick | NL | 1978–1979 | 5 |
| Steve Fields | NL | 1979–1981 | 373 |
| Bill Finneran | NL, FL | 1911–1912, 1915, 1923 | 582 |
| Cherokee Fisher‡ | NA, NL | 1871, 1875–1876 | 4 |
| Frank Fisher | NL | 1979, 1984 | 18 |
| Mike Fitzpatrick | AL | 1979 | 31 |
| Freddie Fitzsimmons‡ | NL | 1941 | 1 |
| Martin Flaherty† | NL | 1882 | 1 |
| Patsy Flaherty‡ | AL, NL | 1903–1904, 1907 | 5 |
| Red Flaherty | AL | 1953–1973 | 3207 |
| Tom Fleming | NL | 1979 | 1 |
| Andy Fletcher^ | NL, MLB | 1999–present | 2908 |
| John Floras | NL | 1991, 1995 | 7 |
| Jocko Flynn† | NL | 1893 | 1 |
| Tom Foley† | NA | 1874–1875 | 4 |
| Bill Follmer | AL | 1979 | 5 |
| Davy Force‡ | NA, NL | 1873, 1881 | 2 |
| Dale Ford | AL | 1976–1999 | 3137 |
| Wade Ford | NL | 1995 | 6 |
| Brownie Foreman‡ | NL | 1896 | 2 |
| Frank Foreman‡ | NL, AL | 1895, 1901 | 2 |
| Al Forman | NL | 1961–1965 | 781 |
| Marty Foster | AL, MLB | 1996–2022 | 2745 |
| Pop Foster‡ | NL | 1900 | 2 |
| Edward Fountain | NL | 1879 | 9 |
| Henry Fountain | AA | 1888 | 1 |
| Bill Fouser‡ | NL | 1876 | 2 |
| Gene Fowler | AL | 1979 | 1 |
| Wheeler Fowler | NL | 1978 | 2 |
| Art Frantz | AL | 1969–1977 | 1386 |
| Ralph Frary | NL | 1911 | 17 |
| Bob Freels | NL | 1979 | 8 |
| Buck Freeman‡ | NL | 1900 | 1 |
| Todd Freese | AL | 1995 | 6 |
| Bill Friel† | AL | 1920 | 56 |
| Bruce Froemming | NL, MLB | 1971–2009 | 5163 |
| Grover Froese | AL | 1952–1953 | 258 |
| Lester Fuchs | AL | 1978–1979 | 3 |
| Joseph Fugere | NL | 1998 | 1 |
| Troy Fullwood | MLB | 2004–2007 | 72 |
| Chick Fulmer‡† | NA, NL, AA | 1872–1875, 1881, 1886, 1888 | 78 |
| Chris Fulmer‡ | AA | 1887 | 2 |
| Tyler Funneman | MLB | 2011 | 1 |
| Bill Furlong | NL, UA | 1877–1880, 1883–1884, 1888 | 146 |
| Lee Fyfe | FL, NL, ECL or NNL I | 1915, 1920, 1926 | 89 |

#### Games per league

* ↑ 43 (NA, 1871–75), 147 (NL, 1879, 1884–85), 503 (AA, 1886–89, 1891), 136 (PL, 1890)
* ↑ 3 (AL, 1999) 554 (MLB, 2000–05)
* ↑ 437 (NL, 1911–12, 1923), 145 (FL, 1915)
* ↑ 3 (NA, 1871, 1875), 1 (NL, 1876)
* ↑ 2 (AL, 1903), 3 (NL, 1904, 1907)
* ↑ 35 (NL, 1999), 2873 (MLB, 2000–present)
* ↑ 1 (NA, 1873), 1 (NL, 1881)
* ↑ 1 (NL, 1895), 1 (AL, 1901)
* ↑ 219 (AL, 1996–99), 2526 (MLB, 2000–22)
* ↑ 4107 (NL, 1971–99), 1056 (MLB, 2000–09)
* ↑ 12 (NA, 1872–75), 65 (NL, 1881, 1886), 1 (AA, 1888)
* ↑ 144 (NL, 1877–80, 1883–84, 1888), 2 (UA, 1884)
* ↑ 84 (FL, 1915), 5 (NL, 1920)

### G

G :
| Name | League(s) | Years | Games |
| John Gaffney | NL, AA, PL | 1884–1894, 1898–1900 | 1107 |
| Larry Gallagher | AL | 1979 | 7 |
| Pud Galvin$^§$‡† | NL, AA | 1881, 1885–1887, 1889, 1895 | 40 |
| Charlie Ganzel‡† | AA, NL | 1886, 1901 | 2 |
| Rich Garcia | AL | 1975–1999 | 3398 |
| Jim Gardner‡ | NL | 1899 | 1 |
| Jim Garman | NL | 1995 | 5 |
| Charles Garrigan | NA | 1873 | 2 |
| Billy Geer‡† | NA, AA | 1874–1875, 1887 | 8 |
| Harry Geisel | AL | 1925–1942 | 2554 |
| Billy George‡ | NL | 1889 | 1 |
| Ed George | AL | 1979 | 1 |
| Joe Gerhardt‡ | NA | 1875 | 1 |
| Les German‡ | NL | 1895 | 1 |
| Pretzels Getzien‡ | NL | 1890 | 1 |
| Bob Giard | AL | 1978 | 1 |
| Brian Gibbons | NL | 1994–1999 | 132 |
| Greg Gibson | NL, MLB | 1997–2019, 2021–2022 | 2746 |
| Tripp Gibson^ | MLB | 2013–present | 1274 |
| Jim Gifford | NL | 1881 | 3 |
| Tommy Gill | AA | 1886 | 3 |
| Tom Gillean | NL | 1879–1880 | 31 |
| Tony Gisondi | NL | 1991 | 1 |
| Bill Gleason† | NL, AA | 1877, 1891 | 2 |
| Jack Gleason‡ | NL | 1877 | 1 |
| Kid Gleason‡ | NL | 1890, 1892 | 4 |
| John Glenn‡† | NA, NL | 1874, 1880 | 7 |
| Frank Glover | NA | 1873 | 2 |
| Ed Goeckel | FL | 1914 | 135 |
| Larry Goetz | NL | 1936–1957 | 3218 |
| Russ Goetz | AL | 1969–1983 | 2384 |
| George Gohen | NL | 1893 | 1 |
| Walt Goldsby‡ | AA | 1888 | 1 |
| Fred Goldsmith† | NL, AA | 1886, 1888–1889 | 171 |
| Manny Gonzalez^ | MLB | 2010–present | 1508 |
| Cheever Goodwin | NA | 1871–1872 | 6 |
| Artie Gore | NL | 1947–1956 | 1464 |
| Brian Gorman | NL, MLB | 1993–2019, 2021 | 3430 |
| Tom Gorman† | NL | 1951–1977 | 3805 |
| Jeff Gosney | MLB | 2014–2015 | 17 |
| Charlie Gould‡ | NA | 1874–1875 | 8 |
| Mike Grady‡ | NL, AL | 1895, 1901 | 2 |
| J. S. Graham | NA | 1871–1872 | 3 |
| Scott Graham | NL, MLB | 1991, 1995, 2004 | 7 |
| Frank Graves‡† | NL | 1886, 1895 | 2 |
| Bill Greenwood‡ | AA | 1884 | 1 |
| Eric Gregg | NL | 1975–1999 | 2621 |
| Bill Grieve | AL | 1938–1955 | 2789 |
| Clark Griffith$^§$‡ | AA, NL, AL | 1891, 1894–1895, 1903 | 4 |
| E. A. Griffith | AA | 1884 | 46 |
| John Grim‡ | NL | 1892, 1895–1896 | 3 |
| John Grimsley | NL | 1970 | 0 |
| Scott Grinder | NL | 1983–1986 | 76 |
| Bob Groom‡ | FL | 1914 | 1 |
| Roger Grooms | NL | 1979 | 8 |
| Emil Gross‡ | NL | 1881 | 1 |
| Henry Gruber‡ | NL | 1889 | 2 |
| George Grygiel | NL | 1970 | 0 |
| Chris Guccione^ | MLB | 2000–present | 3099 |
| Elmer Guckert | NL | 1976 | 1 |
| Augie Guglielmo | NL | 1952 | 154 |
| Ben Guiney‡† | NL | 1882–1883 | 2 |
| Ad Gumbert‡ | PL, NL | 1890, 1892, 1895–1896 | 6 |
| Tom Gunning‡† | NL, AA, PL | 1884–1885, 1887–1890 | 54 |
| Joe Gunson‡ | AA, NL | 1889, 1892 | 3 |
| Dave Gustafson | AL | 1978 | 1 |
| Bill Guthrie | NL, AL | 1913, 1922, 1928–1932 | 841 |

#### Games per league

* ↑ 740 (NL, 1884–87, 1891–94, 1898–1900), 229 (AA, 1888–89), 138 (PL, 1890)
* ↑ 38 (NL, 1881, 1886–87, 1889, 1895), 2 (AA, 1885–86)
* ↑ 1 (AA, 1886), 1 (NL, 1901)
* ↑ 7 (NA, 1874–75), 1 (AA, 1887)
* ↑ 136 (NL, 1997–99), 2610 (MLB, 2000–19, 2021–22)
* ↑ 1 (NL, 1877), 1 (AA, 1891)
* ↑ 2 (NA, 1874), 5 (NL, 1880)
* ↑ 3 (NL, 1886), 168 (AA, 1888–89)
* ↑ 982 (NL, 1993–99), 2448 (MLB, 2000–19, 2021)
* ↑ 1 (NL, 1895), 1 (AL, 1901)
* ↑ 6 (NL, 1991, 1995), 1 (MLB, 2004)
* ↑ 1 (AA, 1891), 2 (NL, 1894–95), 1 (AL, 1903)
* ↑ 3 (PL, 1890), 3 (NL, 1892, 1895–96)
* ↑ 6 (NL, 1884–85, 1887), 4 (AA, 1888–89), 44 (PL, 1890)
* ↑ 1 (AA, 1889), 2 (NL, 1892)
* ↑ 20 (NL, 1913), 821 (AL, 1922, 1928–32)

### H

H :
| Name | League(s) | Years | Games |
| Mert Hackett‡ | NL | 1886 | 1 |
| George Haddock‡ | NL, PL | 1889–1890 | 2 |
| Merrill Hadry | AL, NL | 1979 | 16 |
| Bill Hafner | AL | 1979 | 7 |
| Al Halbach | NA | 1871–1875 | 7 |
| Eddie Haley | NL | 1876 | 1 |
| George Hall‡ | NA | 1873–1875 | 5 |
| Jim Hall‡ | NA | 1872 | 2 |
| Samuel Hall | NA | 1873 | 2 |
| Bill Haller | AL | 1961–1982 | 3069 |
| Tom Hallion | NL, MLB | 1985–1999, 2005–2019, 2021–2022 | 3645 |
| Bill Hallman‡ | PL, NL | 1890, 1903 | 5 |
| Adam Hamari^ | MLB | 2013–present | 1347 |
| Ray Hamil | NL | 1979 | 3 |
| Tom Hanahan^ | MLB | 2023–present | 201 |
| Ned Hanlon$^§$‡ | NL | 1892 | 1 |
| Doc Hanna | NA | 1872 | 1 |
| Howard Hansen | NL | 1978–1979 | 15 |
| Bob Hantak | NL | 1979 | 3 |
| Lou Hardie† | NL | 1887 | 1 |
| Joe Harris‡ | AL | 1906 | 1 |
| Lanny Harris | NL | 1979–1985 | 851 |
| Vance Harris | NL | 1995 | 6 |
| Pete Harrison | NL | 1916–1920 | 645 |
| Bill Hart‡† | NL, AL | 1896–1897, 1901, 1914–1915, 1917 | 294 |
| Bob Hart | AL, NL | 1912–1913, 1920–1929 | 1709 |
| Isaac Hartenstein | NA | 1875 | 1 |
| Grover Hartley† | AL | 1935 | 1 |
| Jack Hartley | NL | 1894 | 14 |
| Doug Harvey* | NL | 1962–1992 | 4673 |
| Randy Harvey | AL | 1991, 1995 | 6 |
| Jack Haskell | AL | 1901 | 120 |
| James Hassett | AL | 1903 | 93 |
| Scott Hastings‡ | NA, NL | 1871–1874, 1877 | 13 |
| Gil Hatfield‡ | NL | 1889 | 1 |
| John Hatfield‡ | NA, NL | 1872–1873, 1876 | 8 |
| Charlie Hautz† | NL, AA | 1876, 1879, 1882 | 29 |
| Bill Hawes† | NL | 1880–1882 | 18 |
| Hicks Hayhurst | NA | 1875 | 1 |
| J. H. Haynie | NA | 1871 | 3 |
| Egyptian Healy‡ | NL, AA | 1887, 1890 | 2 |
| Marvin Hecht | AL | 1979 | 1 |
| Guy Hecker‡ | AA | 1888–1889 | 17 |
| Doctor Hegeman | NA, NL | 1871, 1881 | 3 |
| Dick Heitzer | AL | 1979 | 12 |
| Hugo Helburn | AA | 1887 | 1 |
| J. Helm | NA | 1871–1872 | 4 |
| George Hemming‡ | NL | 1895–1896 | 2 |
| Hardie Henderson† | AA, NL | 1889, 1895–1896 | 63 |
| Ted Hendry | AL | 1977–1999 | 2905 |
| Ed Hengel | NL, AA | 1887, 1889 | 31 |
| Moxie Hengel‡ | UA | 1884 | 22 |
| Butch Henline† | NL | 1945–1948 | 607 |
| Jeff Henrichs | AL | 1993, 1995 | 10 |
| Bill Henry | AL, NL | 1979 | 11 |
| Ángel Hernández | NL, MLB | 1991–2024 | 3839 |
| Bob Hernandez | NL | 1995 | 5 |
| Fred Herndon | AL | 1993 | 1 |
| Joseph Herr‡ | AA | 1888 | 3 |
| W. E. Herrin | NL | 1894 | 1 |
| George Heubel‡† | NA, NL | 1873, 1875–1876 | 31 |
| John Heydler | NL | 1895–1898 | 83 |
| James Hickey | NL | 1882 | 1 |
| Charlie Hickman‡ | AL | 1907 | 1 |
| Ed Hickox | AL, MLB | 1990–1999, 2005–2022 | 2707 |
| Nat Hicks† | AA | 1885 | 4 |
| Bill Higgins‡ | AA | 1890 | 1 |
| John Higgins | AL | 1991, 1995 | 7 |
| Scott Higgins | MLB | 2000–2003 | 174 |
| Dick Higham‡† | NA, NL | 1872–1875, 1881–1882 | 93 |
| George Hildebrand† | AL | 1913–1934 | 3331 |
| Mike Hines‡ | NL | 1884 | 1 |
| John Hirschbeck | AL, MLB | 1983–2007, 2009–2011, 2013–2016 | 3589 |
| Mark Hirschbeck | NL, MLB | 1987–2003 | 1766 |
| Willard Hoagland | NL | 1894 | 27 |
| Pat Hoberg | MLB | 2014–2023 | 1094 |
| Charlie Hodes‡ | NA | 1874 | 4 |
| Amory Hodges | NA, NL | 1874–1877 | 27 |
| Morris Hodges | NL, MLB | 1999–2001 | 45 |
| Bill Hoffer‡ | NL | 1896 | 1 |
| Mortimer Hogan† | NL | 1897 | 2 |
| George Hogreiver† | NL | 1893 | 3 |
| Bill Hohn | NL, MLB | 1987–1999, 2002–2010 | 2195 |
| Bill Holbert‡† | AA, PL | 1888, 1890 | 135 |
| Sam Holbrook | AL, NL, MLB | 1996–1999, 2002–2019, 2021 | 2423 |
| Jack Holland | AA, UA, NL | 1884, 1887, 1889 | 151 |
| Sam Holley | NA | 1871 | 12 |
| Bug Holliday‡† | AA, NL | 1888, 1897, 1903 | 55 |
| Matt Hollowell | MLB | 2000–2004 | 517 |
| Ducky Holmes† | NL, AL | 1921, 1923–1924 | 307 |
| Mike Holoka | NL | 1991, 1995 | 7 |
| Bob Homolka | NL | 1995 | 7 |
| Jim Honochick | AL | 1949–1973 | 3815 |
| Mike Hooper‡† | NA, UA | 1872–1874, 1884 | 18 |
| Joe Hornung† | NL | 1892–1893, 1896 | 52 |
| S. A. Hosworth | NA | 1872, 1874 | 2 |
| Pliny Hough | NA | 1875 | 1 |
| C. F. Howard | NL | 1884 | 1 |
| Charles Howard | NA | 1872 | 1 |
| Shorty Howe‡ | NL | 1890 | 1 |
| Harry Howell‡† | AL, FL | 1904, 1906–1907, 1915 | 90 |
| Dan Howley† | AL | 1922 | 1 |
| James Hoye^ | MLB | 2003–present | 2448 |
| Cal Hubbard* | AL | 1936–1951 | 2466 |
| Mike Huber | AL | 1995 | 6 |
| Marvin Hudson^ | NL, MLB | 1998–present | 3166 |
| Vincent Hudson | UA | 1884 | 1 |
| Rich Humphrey | AL, NL | 1983, 1985–1986, 1995 | 36 |
| John Hunt | NL | 1895, 1898–1899 | 226 |
| Eddie Hurley | AL | 1947–1965 | 2825 |
| Michael Hurley | AA | 1887 | 9 |
| George Hurll | NL | 1876 | 1 |
| Tim Hurst | NL, AL | 1891–1900, 1903–1909 | 1546 |
| Ron Hutson | NL | 1979 | 16 |
| Ham Hyatt‡ | NL | 1912 | 2 |

#### Games per league

* ↑ 1 (NL, 1889), 1 (PL, 1890)
* ↑ 11 (AL, 1979), 5 (NL, 1979)
* ↑ 1635 (NL, 1985–99), 2010 (MLB, 2005–19, 2021–22)
* ↑ 3 (PL, 1890), 2 (NL, 1903)
* ↑ 266 (NL, 1896–97, 1914–15, 1917), 28 (AL, 1901)
* ↑ 203 (AL, 1912–13), 1506 (NL, 1920–29)
* ↑ 10 (NA, 1871–74), 3 (NL, 1877)
* ↑ 6 (NA, 1872–73), 2 (NL, 1876)
* ↑ 18 (NL, 1876, 1879), 11 (AA, 1882)
* ↑ 1 (NL, 1887), 1 (AA, 1890)
* ↑ 1 (NA, 1871), 2 (NL, 1881)
* ↑ 1 (AA, 1889), 62 (NL, 1895–96)
* ↑ 11 (AA, 1887), 20 (AA, 1889)
* ↑ 9 (AL, 1979), 2 (NL, 1979)
* ↑ 928 (NL, 1991–99), 2911 (MLB, 2000–24)
* ↑ 21 (NA, 1873, 1875), 10 (NL, 1876)
* ↑ 905 (AL, 1990–99), 1802 (MLB, 2005–22)
* ↑ 6 (NA, 1872–75), 87 (NL, 1881–82)
* ↑ 2018 (AL, 1983–99), 1571 (MLB, 2000–07, 2009–11, 2013–16)
* ↑ 1364 (NL, 1987–99), 402 (MLB, 2000–03)
* ↑ 14 (NA, 1874–75), 13 (NL, 1876–77)
* ↑ 7 (NL, 1999), 38 (MLB, 2000–01)
* ↑ 1309 (NL, 1987–99), 885 (MLB, 2002–10)
* ↑ 3 (AA, 1888), 132 (PL, 1890)
* ↑ 4 (AL, 1996), 264 (NL, 1997–99), 2155 (MLB, 2002–19, 2021)
* ↑ 110 (AA, 1884, 1889), 32 (UA, 1884), 9 (NL, 1887)
* ↑ 1 (AA, 1888), 54 (NL, 1897, 1903)
* ↑ 13 (NL, 1921), 294 (AL, 1923–24)
* ↑ 9 (NA, 1872–74), 9 (UA, 1884)
* ↑ 5 (AL, 1904, 1906–07), 85 (FL, 1915)
* ↑ 57 (NL, 1998–99), 3109 (MLB, 2000–present)
* ↑ 30 (AL, 1983, 1985–86), 6 (AL, 1995)
* ↑ 950 (NL, 1891–1900, 1903), 596 (AL, 1904–09)

### I

I :
| Name | League(s) | Years | Games |
| Dan Iassogna^ | AL, NL, MLB | 1999–present | 3108 |
| Irwin | AA | 1882 | 1 |
| Arthur Irwin‡† | NL | 1881, 1902 | 53 |
| John Irwin† | AA | 1885 | 1 |
| Bill Ivory | AL | 1979 | 5 |

#### Games per league

* ↑ 17 (AL, 1999), 6 (NL, 1999), 3085 (MLB, 2000–present)

### J

J :
| Name | League(s) | Years | Games |
| Fred Jacklitsch‡ | NL | 1901 | 1 |
| Bill Jackowski | NL | 1952–1968 | 2519 |
| Charles Jackson | AL | 1979 | 1 |
| Dick Jackson | NL | 1995 | 7 |
| Johnny James | AL | 1978–1979 | 19 |
| Dan January | NL | 1991, 1995 | 7 |
| James Jean^ | MLB | 2024–present | 31 |
| Ron Jeffers | NL | 1979 | 4 |
| W. W. Jeffers | NL | 1881 | 24 |
| Jeff Jenkins | NL | 1995 | 6 |
| Alamazoo Jennings† | AA, UA | 1882, 1884–1885, 1887, 1889, 1891 | 46 |
| Andrew Jennings | NA | 1873 | 1 |
| Hughie Jennings$^§$‡ | NL | 1893, 1900 | 3 |
| Fred Jevne | NL | 1892, 1894–1895 | 80 |
| Edwin Jiménez^ | MLB | 2023–present | 167 |
| Emil Jiménez^ | MLB | 2023–present | 245 |
| Richard Johns | NA | 1873 | 1 |
| Adrian Johnson^ | MLB | 2006–present | 2113 |
| A. J. Johnson | MLB | 2014–2015 | 6 |
| Mark Johnson | AL | 1979–1999 | 1979 |
| Steamboat Johnson | NL | 1914 | 66 |
| Syl Johnson‡ | NL | 1934 | 1 |
| Charles Johnston | AL | 1936–1937 | 270 |
| Jim Johnstone | AL, NL, FL | 1902–1912, 1915 | 1736 |
| Austin Jones^ | MLB | 2024–present | 35 |
| Bob Jones | AL, NL | 1979, 1984, 1995 | 14 |
| Charley Jones† | PL, AA | 1890–1891 | 197 |
| Henry Jones† | NL | 1890 | 1 |
| Jim Jones | NL | 1979 | 13 |
| Red Jones | AL | 1944–1949 | 886 |
| Lou Jorda | AL | 1927–1931, 1940–1952 | 2503 |
| Bill Jordan | UA | 1884 | 6 |
| Harold Jordan | AL | 1984 | 0 |
| Victor Jose | NL | 1889 | 1 |
| Mike Jost | MLB | 2004 | 18 |
| C. E. Joyce | NL | 1879 | 1 |
| Jim Joyce | AL, MLB | 1987–2016 | 3268 |
| Joseph Julian | NL, AA | 1878, 1888 | 33 |
| Howard Jumper | NL | 1979 | 1 |

#### Games per league

* ↑ 19 (AA, 1882, 1884–85, 1887, 1889, 1891), 27 (UA, 1884)
* ↑ 140 (AL, 1902), 1443 (NL, 1903–12), 153 (FL, 1915)
* ↑ 9 (AL, 1979), 5 (NL, 1995)
* ↑ 121 (PL, 1890), 76 (AA, 1891)
* ↑ 1383 (AL, 1987–99), 1885 (MLB, 2000–16)
* ↑ 31 (NL, 1878), 2 (AA, 1888)

### K

K :
| Name | League(s) | Years | Games |
| S. L. Kahn | NA | 1875 | 1 |
| Mike Kahoe‡ | NL | 1905 | 1 |
| Ken Kaiser | AL | 1977–1999 | 2815 |
| Steve Kane | NL, FL | 1909–1910, 1914 | 350 |
| Al Kaplan | AL | 1995 | 6 |
| Ed Karger‡ | NL | 1906 | 1 |
| Travis Katzenmeier | MLB | 1999–2001 | 205 |
| Joe Kavulich | AL | 1978–1979 | 7 |
| Tim Keefe$^§$‡† | NL, AA, PL | 1880–1882, 1884–1885, 1887, 1890, 1892–1896 | 243 |
| Willie Keeler$^§$‡ | NL | 1910 | 1 |
| Jim Keenan‡† | AA, NL | 1887–1888, 1890, 1893 | 9 |
| George Keerl‡† | NA | 1872, 1875 | 2 |
| Wayne Keister | AL | 1978–1979 | 12 |
| J. P. Kelley | NL | 1879 | 1 |
| Kevin Kelley | MLB | 2001–2005 | 269 |
| W. W. Kelley | NL | 1877 | 1 |
| Jeff Kellogg | NL, MLB | 1991–2019 | 3276 |
| Win Kellum‡ | NL | 1905 | 1 |
| Gene Kelly | AL | 1979 | 7 |
| John Kelly‡ | UA | 1884 | 3 |
| Kick Kelly† | NL, AA | 1882–1888, 1897 | 626 |
| King Kelly$^§$‡ | NL, PL | 1881, 1890, 1892–1893 | 7 |
| Toss Kelly | AL | 1905 | 67 |
| Charles Kennedy | NL | 1904 | 19 |
| Doc Kennedy† | NL, AL | 1884, 1910 | 3 |
| Ted Kennedy† | NL | 1893 | 1 |
| John Kenney‡† | NA, NL | 1872, 1876–1877 | 14 |
| John Kent | NA | 1875 | 2 |
| John Kerin | AL | 1908–1910 | 265 |
| John Kerins‡† | NL, AA, AL | 1888–1891, 1903 | 246 |
| John Kibler | NL | 1963–1989 | 3630 |
| Frank Killen‡ | NL | 1896–1897 | 2 |
| Matt Kilroy‡ | AA | 1887 | 1 |
| Shawn Kimball | AL | 1991 | 1 |
| Charles King | AL | 1904 | 162 |
| Bill Kinnamon | AL | 1960–1969 | 1227 |
| Tom Kinslow‡ | NL | 1892 | 2 |
| Eden Kipp | NL | 1881 | 6 |
| John Kirby‡ | AA | 1888 | 1 |
| Ken Kirby | AL | 1979 | 7 |
| Frank Kitson‡ | NL | 1902 | 1 |
| Malachi Kittridge‡ | NL, AL | 1890, 1899, 1905–1906 | 4 |
| Chuck Klein$^§$‡ | NL | 1942 | 1 |
| Gus Klein | AL | 1991, 1995 | 7 |
| Barney Kleinbacher | AA | 1886 | 4 |
| Bill Klem* | NL | 1905–1941 | 5372 |
| Justin Klemm | MLB | 2000–2003 | 186 |
| Bill Kling‡ | NL | 1892 | 1 |
| Johnny Kling‡ | NL | 1901 | 1 |
| Billy Klusman† | NL | 1893 | 1 |
| Jim Knauss | AL | 1991 | 1 |
| Phil Knell‡ | AA, NL | 1891, 1895 | 5 |
| Brian Knight^ | MLB | 2001–present | 2091 |
| George Knight‡ | NA | 1875 | 3 |
| Lon Knight‡† | NL, AA, PL | 1876, 1887–1890 | 212 |
| Jimmy Knowles‡ | NL | 1892 | 1 |
| Henry Kohler‡ | NA | 1873 | 1 |
| Lou Kolls | AL | 1933–1940 | 1195 |
| Greg Kosc | AL | 1976–1999 | 3255 |
| Bill Krieg‡ | NL | 1887 | 1 |
| Ron Kulpa^ | NL, MLB | 1998–2023, 2025–present | 2880 |
| Bill Kunkel† | AL | 1968–1984 | 2227 |

#### Games per league

* ↑ 312 (NL, 1909–10), 38 (FL, 1914)
* ↑ 240 (NL, 1880–82, 1885, 1887, 1892–96), 2 (AA, 1884), 1 (PL, 1890)
* ↑ 7 (AA, 1887–88), 2 (NL, 1890, 1893)
* ↑ 932 (NL, 1991–99), 2344 (MLB, 2000–19)
* ↑ 184 (NL, 1882, 1884–85, 1888, 1897), 442 (AA, 1883–87)
* ↑ 5 (NL, 1881, 1892–93), 2 (PL, 1890)
* ↑ 1 (NL, 1884), 2 (AL, 1910)
* ↑ 1 (NA, 1872), 13 (NL, 1876–77)
* ↑ 1 (NL, 1888), 243 (AA, 1889–91), 2 (AL, 1903)
* ↑ 2 (NL, 1890, 1899), 2 (AL, 1905–06)
* ↑ 4 (AA, 1891), 1 (NL, 1895)
* ↑ 46 (NL, 1876, 1888–89), 43 (AA, 1887), 123 (PL, 1890)
* ↑ 84 (NL, 1998–99), 2796 (MLB, 2000–23)

## L—P
### L

L :
| Name | League(s) | Years | Games |
| Bud Lally | NL | 1896 | 46 |
| Harry Lamb | NA | 1875 | 1 |
| Jim Lambeth | NL | 1995 | 1 |
| Ian Lamplugh | NL, MLB | 1999–2002 | 183 |
| Stan Landes | NL | 1955–1972 | 2875 |
| Frank Lane | NL | 1883 | 86 |
| Joseph Langden | FL | 1915 | 3 |
| Charles Lanigan | NL | 1908 | 4 |
| Richard LaPierre | AL | 1979 | 3 |
| Arlie Latham† | NL | 1899–1900, 1902 | 130 |
| Jumbo Latham‡ | AA | 1884 | 1 |
| Bill Laude | AL | 1978–1979 | 3 |
| Ben Laughlin‡† | NA, NL | 1873, 1876 | 2 |
| William Laughlin | AA | 1882, 1885 | 3 |
| Jacques Lauzon | NL | 1979 | 5 |
| John Lawler | AA | 1884 | 7 |
| Mike Lawlor† | NL | 1882 | 1 |
| Bill Lawson | NL | 1979 | 27 |
| Jerry Layne | NL, MLB | 1989–2019, 2021–2023 | 3639 |
| Richie Lazar | AL | 1978–1979 | 2 |
| Harry Leach | PL | 1890 | 28 |
| Tom Leahy‡ | AL | 1901 | 1 |
| LeClerc | NL | 1981 | 2 |
| Tom Lee‡ | UA | 1884 | 3 |
| Sam Leever‡ | NL | 1900 | 1 |
| Bill Lennon‡† | NA | 1871–1874 | 15 |
| Nic Lentz^ | MLB | 2016–present | 997 |
| Andy Leonard‡ | NA | 1872–1873, 1875 | 4 |
| J. Leonard | NA | 1872 | 1 |
| Tom Lepperd | AL | 1984–1986 | 78 |
| Don Leppert† | AL | 1978 | 1 |
| Isaac Leroy | NA | 1871 | 3 |
| Jay Levet | AL | 1979 | 16 |
| Charlie Levis† | AA | 1882 | 2 |
| Steve Libby† | NL | 1879–1880 | 9 |
| John Libka^ | MLB | 2017–present | 729 |
| Fred Lincoln | NL | 1914 | 31 |
| Vive Lindaman‡ | NL | 1907 | 1 |
| Joe Linsalata | AL | 1961 | 166 |
| Harry Little† | AA | 1884 | 1 |
| Will Little^ | MLB | 2013–present | 1213 |
| Shane Livensparger^ | MLB | 2017–present | 537 |
| William Locke | NA | 1873–1874 | 2 |
| Jerry Loeber | AL, NL | 1979 | 8 |
| Mark Lollo | MLB | 2011–2012 | 10 |
| Billy Long | NL | 1893, 1895 | 32 |
| Bob Long | NL | 1992–1993 | 12 |
| Herman Long‡ | NL | 1897 | 1 |
| Phil Lospitalier | AL, NL | 1979 | 17 |
| Jim Lovett | NA | 1871 | 1 |
| Bobby Lowe‡ | AL | 1905–1906 | 2 |
| John Lowell | NA | 1872–1873 | 3 |
| Ron Luciano | AL | 1969–1979 | 1668 |
| Terry Luhr | NL | 1984 | 2 |
| Dale Luker | AL | 1995 | 6 |
| Carl Lundgren‡ | NL | 1905–1906 | 5 |
| Charlie Lupo | NL, AL | 1978–1979 | 35 |
| Lush | NA | 1873 | 1 |
| Jack Lynch‡ | AA | 1884 | 1 |
| Thomas Lynch | NL | 1888–1899, 1902 | 1325 |
| Toby Lyons† | AA | 1891 | 1 |
| John Lyston† | AA | 1890 | 3 |

#### Games per league

* ↑ 28 (NL, 1999), 155 (MLB, 2000–02)
* ↑ 1 (NA, 1873), 1 (NL, 1876)
* ↑ 1341 (NL, 1989–99), 2298 (MLB, 2000–19, 2021–23)
* ↑ 3 (AL, 1979), 5 (NL, 1979)
* ↑ 10 (AL, 1979), 7 (NL, 1979)
* ↑ 17 (NL, 1978–79), 18 (AL, 1979)

### M

M :
| Name | League(s) | Years | Games |
| Fred Mabbott | AL | 1979 | 1 |
| Harry Mace† | AL | 1903 | 1 |
| Denny Mack‡† | NA, AA | 1873–1875, 1886 | 34 |
| Alex MacKay^ | MLB | 2020–present | 262 |
| John Mackin | AL | 1979 | 1 |
| Jimmy Macullar‡† | AA, NL | 1886, 1891–1892 | 39 |
| Kid Madden‡ | PL | 1890 | 1 |
| Charles Maddox | NL | 1882 | 1 |
| Sherry Magee† | NL | 1928 | 148 |
| George Magerkurth | NL | 1929–1947 | 2812 |
| Jim Maginnis | NL | 1910 | 1 |
| John Magner† | AA | 1882–1884, 1887 | 30 |
| Joe Maher | NL | 1979, 1984 | 8 |
| Jerry Mahoney | AA, NL | 1891–1892 | 65 |
| Nick Mahrley^ | MLB | 2017–present | 701 |
| Fergy Malone‡† | NA, NL | 1875, 1884, 1892 | 17 |
| J. R. Malone | AA | 1888 | 3 |
| Martin Malone | NA | 1875 | 4 |
| Billy Maloney‡ | NL | 1902 | 1 |
| George Maloney | AL | 1969–1983 | 2159 |
| Terry Mann | AL | 1995 | 6 |
| Al Mannassau | NL, AL, FL | 1899, 1901, 1914 | 297 |
| Jack Manning‡ | NL | 1881 | 1 |
| Jim Manning‡† | NL | 1886, 1893 | 3 |
| J. H. Manny | NA | 1871 | 1 |
| Blake Mapledoram | UA, NL | 1884, 1886 | 41 |
| Firpo Marberry† | AL | 1935 | 96 |
| Jimmy Marino | AL | 1979 | 3 |
| Alfonso Márquez^ | NL, MLB | 1999–present | 2998 |
| Randy Marsh | NL, MLB | 1981–2009 | 3707 |
| Frank Marshall | AA | 1887 | 2 |
| Lewis Martin | NA | 1871, 1873–1874 | 7 |
| Phonney Martin‡† | NA, NL | 1871, 1873, 1875–1876 | 10 |
| Bruce Martine | NL | 1991 | 1 |
| Charlie Mason† | NL | 1876 | 1 |
| Darrel Mason | AL | 1995 | 7 |
| Bobby Mathews‡† | NA, NL, AA, PL | 1871, 1873–1876, 1880, 1882, 1888, 1890–1891 | 155 |
| Christy Mathewson$^§$‡ | NL | 1901, 1907 | 3 |
| Mike Mattimore‡ | AA | 1888 | 1 |
| Boyd Mauer | NL, AL | 1978–1979 | 35 |
| Bert Maxwell‡ | FL | 1914 | 1 |
| Corty Maxwell | NA | 1875 | 3 |
| Ben May^ | MLB | 2014–present | 997 |
| Ed Mayer† | NL | 1893 | 1 |
| Al Mays‡ | AA | 1887 | 2 |
| John McArdle | MLB | 2004 | 1 |
| Charles McCafferty | NL | 1921, 1923 | 8 |
| Jack McCarthy | AL | 1905 | 148 |
| Tim McClelland | AL, MLB | 1981–2013 | 4236 |
| Barry McCormick† | FL, AL, NL | 1914–1915, 1917, 1919–1929 | 1982 |
| Larry McCoy | AL | 1970–1999 | 4023 |
| Kyle McCrady | MLB | 2020–2021 | 31 |
| Bill McGowan* | AL | 1925–1954 | 4425 |
| Eugene McGreevy | AL | 1912–1913 | 98 |
| Ted McGrew | NL | 1930–1931, 1933–1934 | 440 |
| Jim McKean | AL, MLB | 1974–2001 | 3514 |
| Bill McKinley | AL | 1946–1965 | 2976 |
| Edward McLaughlin | NL | 1929 | 155 |
| Peter McLaughlin | NL | 1924–1927 | 447 |
| Jack McQuaid | AA, NL | 1886–1894 | 952 |
| John McSherry | NL | 1971–1995 | 3396 |
| Jerry Meals | NL, MLB | 1992–2022 | 3303 |
| Chuck Meriwether | AL, MLB | 1987–2009 | 2594 |
| Durwood Merrill | AL | 1976–1999 | 3121 |
| Dan Merzel^ | MLB | 2020–present | 492 |
| Jacob Metz^ | MLB | 2023–present | 98 |
| Bill Miller^ | AL, MLB | 1997–present | 3300 |
| Brennan Miller^ | MLB | 2019–present | 429 |
| Ed Montague | NL, MLB | 1974, 1976–2009 | 4369 |
| Malachi Moore^ | MLB | 2020–present | 394 |
| Gabe Morales^ | MLB | 2014–present | 1263 |
| Augie Moran | NL | 1903–1904, 1910, 1918 | 368 |
| Charley Moran† | NL | 1918–1939 | 3181 |
| Hank Morgenweck | AL | 1972–1975 | 623 |
| George Moriarty† | AL | 1917–1926, 1929–1940 | 3047 |
| Dan Morrison | AL, MLB | 1979–2001 | 2660 |
| Edwin Moscoso^ | MLB | 2020–present | 573 |
| Casey Moser | MLB | 2005, 2008–2010 | 37 |
| Bob Motley | NAL | 1947–1948 | |
| Mike Muchlinski^ | MLB | 2006–present | 1796 |
| Dominic Mullaney | AL | 1915 | 36 |
| John Mullin | NL, AL, FL | 1909, 1911, 1915 | 222 |

#### Games per league

* ↑ 28 (NA, 1873–75), 6 (AA, 1886)
* ↑ 6 (AA, 1886, 1891), 33 (NL, 1892)
* ↑ 49 (AA, 1891), 16 (NL, 1892)
* ↑ 2 (NA, 1875), 15 (NL, 1884, 1892)
* ↑ 92 (NL, 1899), 96 (AL, 1901), 109 (FL, 1914)
* ↑ 40 (UA, 1884), 1 (NL, 1886)
* ↑ 30 (NL, 1999), 2968 (MLB, 2000–present)
* ↑ 2521 (NL, 1981–99), 1186 (MLB, 2000–09)
* ↑ 9 (NA, 1871, 1873, 1875), 1 (NL, 1876)
* ↑ 25 (NA, 1871, 1873–75), 17 (NL, 1876, 1880, 1882), 41 (AA, 1888, 1891), 72 (PL, 1890)
* ↑ 17 (NL, 1978–79), 18 (AL, 1979)
* ↑ 2417 (AL, 1981–99), 1819 (MLB, 2000–13)
* ↑ 315 (FL, 1914–15), 97 (AL, 1917), 1571 (NL, 1919–29)
* ↑ 3355 (AL, 1974–99), 159 (MLB, 2000–01)
* ↑ 242 (AA, 1886–88), 710 (NL, 1889–94)
* ↑ 397 (NL, 1992–99), 2906 (MLB, 2000–22)
* ↑ 1246 (AL, 1987–99), 1348 (MLB, 2000–19)
* ↑ 177 (AL, 1997–99), 3123 (MLB, 2000–present)
* ↑ 3240 (NL, 1974, 1976–99), 1129 (MLB, 2000–09)
* ↑ 2491 (AL, 1979–99), 169 (MLB, 2000–01)
* ↑ 7 (NL, 1909), 148 (AL, 1911), 67 (FL, 1915)

### N

N :
| Name | League(s) | Years | Games |
| Henry Nace | NA | 1872 | 1 |
| Dick Nallin | AL | 1915–1932 | 2722 |
| Larry Napp | AL | 1951–1974 | 3610 |
| Billy Nash† | NL | 1901 | 101 |
| Paul Nauert | NL, MLB | 1995–1999, 2002–2022 | 2450 |
| Jose Navas | MLB | 2020–2023 | 153 |
| Tom Needham‡ | NL | 1904, 1907 | 2 |
| Pete Negri | NL | 1979 | 1 |
| Bob Nelson | NL | 1979, 1991, 1995 | 32 |
| Candy Nelson‡ | NA | 1872 | 1 |
| Dick Nelson | AL | 1979 | 36 |
| Jeff Nelson | NL, MLB | 1997–2023 | 3142 |
| Scott Nelson | MLB | 2001–2003 | 69 |
| Jerry Neudecker | AL | 1966–1985 | 3026 |
| Bobo Newsom‡ | AL | 1938 | 1 |
| Doc Newton‡ | NL | 1902 | 1 |
| A. N. Nichols | NA | 1871 | 1 |
| Kid Nichols$^§$‡ | NL | 1900–1901 | 3 |
| Hugh Nicol† | NL | 1894 | 3 |
| The Only Nolan‡ | NL | 1881 | 2 |
| Pete Noonan‡ | NL | 1906–1907 | 2 |
| Ed Norris | NL | 1978–1979 | 20 |
| Frank Norton† | NA | 1872 | 1 |
| Lee Norton | AA | 1890 | 1 |
| Carl Nothnagel | AL | 1984 | 0 |
| Les Novack | AL | 1979 | 5 |
| Harrison Noxom | NA | 1871 | 1 |

#### Games per league

* ↑ 294 (NL, 1995–99, 2156 (MLB, 2002–22)
* ↑ 254 (NL, 1997–99), 2888 (MLB, 2000–23)

### O

O :
| Name | League(s) | Years | Games |
| Henry Oberbeck‡ | UA | 1884 | 3 |
| Darby O'Brien‡ | AA | 1887–1888 | 2 |
| Frank O'Brien | AA | 1890 | 12 |
| Jim O'Brien | AL | 1979 | 10 |
| Joe O'Brien | AL, FL | 1912, 1914–1915 | 121 |
| Pete O'Brien‡ (1900s second baseman) | AL | 1907 | 1 |
| Pete O'Brien (umpire) | NA | 1875 | 1 |
| William O'Brien | NL | 1876 | 1 |
| O'Connor | NL | 1982 | 1 |
| Arthur O'Connor | NL | 1914 | 24 |
| Jack O'Connor‡ | AA, NL | 1889, 1893, 1901 | 5 |
| Jim O'Connor | AL | 1978–1979 | 17 |
| Tom O'Connor | AL | 1979 | 3 |
| Hank O'Day*‡† | AA, NL, PL | 1884, 1888–1890, 1895–1911, 1913, 1915–1927 | 3984 |
| Larry O'Dea | AA | 1890 | 25 |
| Mike O'Dell | AL | 1984 | 0 |
| Arthur Odlin | NL | 1883 | 13 |
| Jim Odom | AL | 1965–1974 | 1597 |
| Jake O'Donnell | AL | 1968–1971 | 489 |
| Dan O'Leary‡ | NL | 1879 | 1 |
| Ed Oliger | NL | 1979 | 5 |
| Silk O'Loughlin | AL | 1902–1918 | 2574 |
| Andy Olsen | NL | 1968–1980 | 1860 |
| Mike O'Neill‡ | NL | 1904 | 1 |
| Brian O'Nora^ | AL, MLB | 1992–2019, 2021–present | 3459 |
| Red Ormsby | AL | 1923–1941 | 2537 |
| Jim O'Rourke$^§$‡† | NL | 1893–1894 | 30 |
| Dave Orr† | NL | 1891 | 1 |
| Al Orth‡† | NL | 1901, 1912–1917 | 505 |
| Roberto Ortiz^ | MLB | 2016–present | 764 |
| William Osborne | NL | 1876 | 2 |
| John O'Sullivan | NL | 1922 | 4 |
| Orval Overall‡ | NL | 1905, 1910 | 3 |
| Brick Owens | NL, AL | 1908, 1912–1913, 1916–1937 | 3323 |

#### Games per league

* ↑ 78 (AL, 1912, 1914), 43 (FL, 1915)
* ↑ 1 (AA, 1889), 4 (NL, 1893, 1901)
* ↑ 1 (AA, 1884), 3981 (NL, 1888–90, 1895–1911, 1913, 1915–27), 2 (PL, 1890)
* ↑ 710 (AL, 1992–99), 2749 (MLB, 2000–19, 2021–present)
* ↑ 165 (NL, 1908, 1912–13), 3159 (AL, 1916–37)

### P

P :
| Name | League(s) | Years | Games |
| Scott Packard | MLB | 2000–2002 | 106 |
| Joe Padilla | NL | 1995 | 7 |
| Steve Palermo | AL | 1976–1991 | 1871 |
| Dave Pallone | NL | 1979–1988 | 1361 |
| Joe Paparella | AL | 1946–1965 | 3143 |
| Tiny Parker | NL | 1936–1938 | 329 |
| Jonathan Parra^ | MLB | 2024–present | 85 |
| Art Passarella | AL | 1941–1942, 1945–1952 | 1673 |
| Marcus Pattillo | MLB | 2014–2015 | 94 |
| Chris Pelekoudas | NL | 1960–1975 | 2487 |
| Bull Perrine | AL | 1909–1912 | 507 |
| Cy Pfirman | NL | 1922–1936 | 2240 |
| Dave Phillips | AL, MLB | 1971–1999, 2001–2002 | 3933 |
| Jerry Phipps | AL | 1978–1979 | 12 |
| Gracie Pierce‡† | AA, NL, PL | 1882, 1884, 1887, 1890, 1892–1893 | 144 |
| Babe Pinelli† | NL | 1935–1956 | 3394 |
| George Pipgras† | AL | 1938–1946 | 1145 |
| Joe Pomponi | NL | 1979, 1984 | 10 |
| Larry Poncino | NL, MLB | 1985–1988, 1991–1999, 2002–2007 | 1961 |
| Alan Porter^ | MLB | 2010–present | 1648 |
| Lester Pratt | AL | 1979 | 14 |
| Paul Pryor | NL | 1961–1981 | 3094 |
| Frank Pulli | NL | 1972–1999 | 3774 |

#### Games per league

* ↑ 3858 (AL, 1971–99), 75 (MLB, 2001–02)
* ↑ 4 (AA, 1882, 1884), 83 (NL, 1887, 1892–93), 57 (PL, 1890)
* ↑ 1145 (NL, 1985–88, 1991–99), 816 (MLB, 2002–07)

## Q—U
### Q

Q :
| Name | League(s) | Years | Games |
| Arthur Queisser | FL | 1914 | 4 |
| Joe Quest† | NL | 1886–1887 | 69 |
| Jim Quick | NL | 1974, 1976–1998 | 2987 |
| Ernie Quigley | NL | 1913–1938 | 3356 |
| A. J. Quinn | AA | 1886 | 19 |
| Billy Quinn | AA, NL | 1884–1885, 1887, 1889–1890 | 64 |
| Joe Quinn† (catcher) | NL | 1881–1882 | 25 |
| Joe Quinn‡ (second baseman) | NL | 1894, 1896 | 2 |
| John Quinn | AL | 1935–1942 | 1247 |
| Paddy Quinn‡ | NA, NL | 1875–1876 | 3 |

#### Games per league

* ↑ 55 (AA, 1884–85), 9 (NL, 1887, 1889–90)
* ↑ 1 (NA, 1875), 2 (NL, 1876)

### R

R :
| Name | League(s) | Years | Games |
| David Rackley^ | MLB | 2010–present | 1367 |
| Shawn Rakos | MLB | 2008–2009 | 11 |
| Charlie Ramos^ | MLB | 2020–present | 406 |
| Tony Randazzo^ | NL, MLB | 1999–2007, 2009–2019, 2021, 2023–present | 2662 |
| Ed Rapuano | NL, MLB | 1990–2012 | 2846 |
| Beans Reardon | NL | 1926–1949 | 3515 |
| Rick Reed | AL, MLB | 1979–2010 | 3392 |
| Icicle Reeder‡ | AA | 1884 | 1 |
| Jeremie Rehak^ | MLB | 2018–present | 733 |
| Mike Reilly | AL, MLB | 1977–2010 | 4491 |
| Travis Reininger | MLB | 2005–2008 | 75 |
| Charlie Reliford | AL, MLB | 1989–2009 | 2278 |
| Dutch Rennert | NL | 1973–1992 | 2693 |
| D. J. Reyburn^ | MLB | 2008–present | 1630 |
| Jim Reynolds | AL, MLB | 1999–2022 | 2815 |
| John Rice | AL | 1955–1973 | 2990 |
| Rich Rieker | NL, MLB | 1992–2001 | 1001 |
| Mike Riggins | NL | 1995 | 4 |
| Jeremy Riggs^ | MLB | 2020–present | 432 |
| Cy Rigler | NL | 1906–1922, 1924–1935 | 4140 |
| Mark Ripperger^ | MLB | 2010–present | 1325 |
| Steve Rippley | NL, MLB | 1983–2003 | 2514 |
| Scotty Robb | NL, AL | 1947–1953 | 869 |
| Lenny Roberts | NL | 1953 | 72 |
| Armando Rodriguez | AL | 1974–1975 | 318 |
| Rocky Roe | AL, MLB | 1979–2001 | 2771 |
| Mort Rogers | NA | 1871–1872 | 13 |
| Eddie Rommel† | AL | 1938–1959 | 3364 |
| Randy Rosenberg | MLB | 2020–2023 | 51 |
| Pants Rowland | AL | 1923–1927 | 752 |
| Frank Rudderham | NL | 1907–1908 | 121 |
| Joe Rue | AL | 1938–1947 | 1516 |
| Gus Ruhl | AA | 1882 | 2 |
| Dick Runchey | AL | 1979, 1984 | 6 |
| Brian Runge | NL, MLB | 1999–2012 | 1564 |
| Ed Runge | AL | 1954–1970 | 2638 |
| Paul Runge | NL | 1973–1997 | 3196 |
| Jimmy Ryan‡ | NL | 1892 | 1 |
| Johnny Ryan‡† | NA, AA | 1872, 1875, 1882 | 6 |
| Red Ryan | NL | 1946 | 1 |
| Cy Ryberg | NL | 1995 | 6 |

#### Games per league

* ↑ 30 (NL, 1999), 2632 (MLB, 2000–07, 2009–19, 2021, 2023–present)
* ↑ 1219 (NL, 1990–99), 1627 (MLB, 2000–12)
* ↑ 2397 (AL, 1979–99), 995 (MLB, 2000–10)
* ↑ 3095 (AL, 1977–99), 1396 (MLB, 2000–10)
* ↑ 1199 (AL, 1989–99), 1079 (MLB, 2000–09)
* ↑ 62 (AL, 1999), 2753 (MLB, 2000–22)
* ↑ 789 (NL, 1992–99), 212 (MLB, 2000–01)
* ↑ 2109 (NL, 1983–99), 404 (MLB, 2000–03)
* ↑ 662 (NL, 1947–52), 207 (AL, 1952–53)
* ↑ 2600 (AL, 1979–99), 171 (MLB, 2000–01)
* ↑ 83 (NL, 1999), 1481 (MLB, 2000–12)
* ↑ 4 (NA, 1872, 1875), 2 (AA, 1882)

### S

S :
| Name | League(s) | Years | Games |
| Harry Sage‡ | AA | 1890 | 1 |
| Al Salerno | AL | 1961–1968 | 1110 |
| Jack Samuels | MLB | 2001, 2003–2005 | 72 |
| Ben Sanders‡ | NL | 1889 | 1 |
| Lou Say‡ | NL | 1879 | 1 |
| Harry Schafer‡ | NA | 1875 | 1 |
| Stu Scheurwater^ | MLB | 2014–present | 1000 |
| Boss Schmidt‡ | AL | 1906–1907 | 3 |
| Henry Schmidt‡ | AL | 1903 | 1 |
| Ossee Schreckengost‡ | AL | 1903 | 2 |
| Paul Schrieber | NL, MLB | 1997–2015 | 2207 |
| Pop Schriver‡ | NL | 1901 | 7 |
| Harry Schwarts | AL | 1960–1962 | 338 |
| Dale Scott | AL, MLB | 1985–2017 | 3897 |
| Jim Scott (umpire) | NL | 1978–1979 | 18 |
| Jim Scott† (1910s pitcher) | NL | 1930–1931 | 252 |
| Ziggy Sears | NL | 1934–1945 | 1643 |
| Frank Secory† | NL | 1952–1970 | 2977 |
| Chris Segal^ | MLB | 2014–present | 1152 |
| Frank Sellman† | NA, AA | 1873, 1882 | 5 |
| Count Sensenderfer‡† | NA | 1872–1875 | 13 |
| Paul Sentell† | NL | 1922–1923 | 157 |
| Billy Serad‡ | NL, AA | 1884, 1888 | 2 |
| Ed Seward† | NL | 1892–1893 | 27 |
| George Seward† | NL, AA, UA | 1876–1878, 1884 | 108 |
| Spike Shannon† | FL | 1914–1915 | 177 |
| Jack Sheridan | PL, NL, AL | 1890, 1892–1893, 1896–1897, 1901–1914 | 2177 |
| John Shulock | AL, MLB | 1979–2002 | 3050 |
| Dave Slickenmeyer | AL, NL | 1979, 1984, 1991, 1995 | 15 |
| Al Smith | AL | 1960–1964 | 798 |
| Vinnie Smith† | NL | 1957–1965 | 1243 |
| Pop Snyder‡† | NA, AA, PL, NL | 1875, 1886, 1890–1893, 1895, 1898–1901 | 390 |
| Hank Soar | AL | 1950–1975, 1977–1978 | 3595 |
| Darren Spagnardi | MLB | 2002–2004 | 92 |
| Fred Spenn | AL | 1977–1980, 1991 | 364 |
| Pat Spieler | MLB | 2000–2002 | 76 |
| Marty Springstead | AL | 1966–1985 | 3010 |
| Jack Stafford | NL, AL | 1906–1907 | 132 |
| Billy Stage | NL | 1894–1897 | 49 |
| Dolly Stark | NL | 1928–1935, 1937–1940 | 1550 |
| Paul Steinburg | NL | 1909 | 6 |
| Mel Steiner | NL | 1961–1972 | 1918 |
| Harry Steinfeldt‡ | NL | 1905 | 1 |
| Dick Stello | NL | 1968–1987 | 2764 |
| John Stevens | AL | 1948–1971, 1973, 1975 | 3346 |
| Bill Stewart | NL | 1933–1954 | 3192 |
| Bob Stewart | AL | 1958–1970 | 1958 |
| Ernie Stewart | AL | 1941–1945 | 688 |
| John Stewart | NL | 1979, 1984 | 3 |
| Otis Stockdale‡† | NL, FL | 1895, 1915 | 14 |
| Ed Sudol | NL | 1957–1977 | 3245 |
| Bill Summers | AL | 1933–1959 | 4119 |
| James Sumner | NL | 1876–1878 | 28 |
| Mule Suttles$^§$† | NNL II | 1948 | 0 |
| Monroe Sweeney | NL | 1924–1926 | 412 |
| Frank Sylvester | NL, MLB | 1995, 2004 | 6 |

#### Games per league

* ↑ 288 (NL, 1997–99), 1919 (MLB, 2000–15)
* ↑ 1715 (AL, 1985–99), 2177 (MLB, 2000–17)
* ↑ 2 (NA, 1873), 3 (AA, 1882)
* ↑ 1 (NL, 1884), 1 (AA, 1888)
* ↑ 21 (NL, 1876–78), 54 (AA, 1884), 33 (UA, 1884)
* ↑ 81 (PL, 1890), 288 (NL, 1892–93, 1896–97), 1808 (AL, 1901–14)
* ↑ 2722 (AL, 1979–99), 328 (MLB, 2000–02)
* ↑ 9 (AL, 1979, 1991, 1995), 6 (NL, 1979)
* ↑ 1 (NA, 1875), 14 (AA, 1886, 1891), 53 (PL, 1890), 322 (NL, 1892–93, 1895, 1898–1901)
* ↑ 1 (NL, 1906), 131 (AL, 1907)
* ↑ 13 (NL, 1895, 1915), 1 (FL, 1915)
* ↑ 5 (NL, 1995), 1 (MLB, 2004)

### T

T :
| Name | League(s) | Years | Games |
| Frank Tabacchi | AL | 1956–1959 | 516 |
| John Talbot | AA | 1887 | 1 |
| Jesse Tannehill‡ | NL | 1897, 1901–1902 | 5 |
| Terry Tata | NL | 1973–1999 | 3742 |
| Pop Tate‡ | NL | 1888 | 1 |
| William Tate | NA | 1874 | 9 |
| Jack Taylor‡ (1890s pitcher) | NL | 1899 | 1 |
| Jack Taylor‡ (1900s pitcher) | NL | 1905 | 1 |
| Joe Bob Taylor | AL | 1979 | 7 |
| Walter Taylor | AA | 1890 | 9 |
| Tom Telford | NL | 1979 | 15 |
| John Tener‡ | NL, PL | 1889–1890 | 2 |
| Russ Terlop | AL | 1979 | 2 |
| Adonis Terry‡† | AA, NL, AL | 1884, 1888, 1892, 1895–1896, 1900–1901 | 51 |
| Ted Theilander | AL | 1979 | 5 |
| Derek Thomas^ | MLB | 2023–present | 212 |
| Mike Thompson | AL | 1978–1979 | 18 |
| R. J. Thompson | MLB | 2008–2009 | 4 |
| Todd Tichenor^ | MLB | 2007–present | 1959 |
| Mike Tiernan‡ | NL | 1895 | 1 |
| Ed Tighe | NA | 1871 | 5 |
| Otis Tilden | NL | 1876, 1880 | 26 |
| Chris Tiller | MLB | 2008–2010 | 64 |
| Hank Tillman | NL, AL | 1978–1979 | 8 |
| Timblin | UA | 1884 | 3 |
| Tim Timmons | NL, MLB | 1999–2021 | 2746 |
| Charles Tindill | NL | 1890, 1896 | 2 |
| Tinney | AA | 1882 | 1 |
| Nate Tomlinson^ | MLB | 2020–present | 353 |
| Steve Toole† | NL, AA | 1888, 1890 | 39 |
| Carlos Torres^ | MLB | 2015–present | 1031 |
| Alex Tosi^ | MLB | 2019–present | 427 |
| George Townsend‡ | AA | 1890 | 2 |
| Bill Traffley‡ | AA | 1884 | 1 |
| Vic Travis | AL | 1995 | 6 |
| Fred Treacey‡ | NA | 1871, 1873, 1875 | 4 |
| Les Treitel | NL | 1978–1979 | 11 |
| Dick Tremblay | NL | 1970, 1979 | 90 |
| Harry Truby† | NL | 1909 | 58 |
| Tim Tschida | AL, MLB | 1987–2012 | 3358 |
| John Tumpane^ | MLB | 2010–present | 1374 |
| William Tunison | AA | 1885–1886 | 52 |
| Leo Turner | AL | 1978 | 1 |
| Ben Tuthill | NL | 1895 | 2 |
| Larry Twitchell‡ | NL | 1894 | 4 |
| Columbus Tyler | NA | 1871–1873 | 5 |

#### Games per league

* ↑ 1 (NL, 1889), 1 (PL, 1890)
* ↑ 6 (AA, 1884, 1888), 43 (NL, 1882, 1895–96, 1900), 2 (AL, 1901)
* ↑ 2 (NL, 1978–79), 6 (AL, 1979)
* ↑ 10 (NL, 1999), 2736 (MLB, 2000–21)
* ↑ 1 (NL, 1888), 38 (AA, 1890)
* ↑ 1698 (AL, 1987–99), 1660 (MLB, 2000–12)

### U

U :
| Name | League(s) | Years | Games |
| Jake Uhlenhopp | MLB | 2009 | 1 |
| George Ulrich | AL | 1995 | 5 |
| Frank Umont | AL | 1954–1973 | 3147 |
| Woody Urchak | AL | 1978–1979 | 13 |
| Emmett Urell | NA | 1873 | 1 |
| Jim Uremovich | AL | 1991, 1995 | 7 |
| Dick Urlage | NL | 1979, 1991 | 6 |

## V—Z
### V

V :
| Name | League(s) | Years | Games |
| Bill Valentine | AL | 1963–1968 | 947 |
| John Valentine† | AA, NL | 1884–1888 | 447 |
| Junior Valentine^ | MLB | 2020–present | 479 |
| Ike Van Burkalow | AA | 1888 | 1 |
| Eugene Van Court | NL | 1884 | 68 |
| Benjamin Van Delft | NA | 1875 | 1 |
| Roy Van Graflan | AL | 1927–1933 | 1034 |
| Larry Vanover | NL, MLB | 1991, 1993–2024 | 3470 |
| Charles Van Sickle | FL | 1914 | 67 |
| Mike Vanvleet | MLB | 2000–2002 | 247 |
| Ed Vargo | NL | 1960–1983 | 3555 |
| Farmer Vaughn‡ | AA, NL | 1891–1892, 1899 | 3 |
| Tony Venzon | NL | 1957–1971 | 2226 |
| Lee Viau‡ | AA, NL | 1888, 1891 | 2 |
| Tom Vickery‡ | NL | 1890 | 1 |
| Jansen Visconti^ | MLB | 2018–present | 766 |
| Vic Voltaggio | AL | 1977–1996 | 2218 |
| E. C. Voltz | NA | 1871–1872 | 3 |
| Clint Vondrak^ | MLB | 2020–present | 384 |

#### Games per league

* ↑ 263 (AA, 1884–87), 184 (NL, 1887–88)
* ↑ 827 (NL, 1991, 1993–99), 2643 (MLB, 2000–24)
* ↑ 1 (AA, 1891), 2 (NL, 1892, 1899)
* ↑ 1 (AA, 1888), 1 (NL, 1891)

### W

W :
| Name | League(s) | Years | Games |
| Ben Wade | NL | 1879–1880 | 2 |
| Larry Walding | AL | 1995 | 5 |
| Tom Walker‡ | NL | 1905 | 1 |
| William Walker | NL | 1876–1878 | 29 |
| Joe Wall‡ | NL | 1901 | 1 |
| Bobby Wallace‡† | NL, AL | 1895, 1915 | 112 |
| Jim Waller | NL | 1979 | 1 |
| Brian Walsh^ | MLB | 2023–present | 212 |
| Ed Walsh$^§$† | AL | 1922 | 87 |
| Frank Walsh | NL | 1961–1963 | 344 |
| Mike Walsh | NA, NL, AA | 1875–1880, 1882–1888 | 304 |
| Walters | NL | 1892–1893 | 3 |
| Bucky Walters‡ | NL | 1942, 1947 | 2 |
| Benny Walton | AL | 1996 | 1 |
| G. W. Walton | NL | 1876 | 3 |
| Harry Ward | NAL | 1937–? | |
| Monte Ward‡ | NL | 1888 | 1 |
| Wardell | NA | 1874 | 1 |
| Lon Warneke† | NL | 1949–1955 | 1055 |
| Al Warner | NL | 1898–1900 | 138 |
| Jack Warner‡ | NL, AL | 1896–1897, 1901, 1903, 1998 | 6 |
| L. B. Warren | NL | 1876 | 1 |
| Frank Wash | NL | 1877 | 3 |
| Fred Waterman‡ | NA | 1873 | 3 |
| Hal Weafer | AL | 1943–1947 | 779 |
| Farmer Weaver‡ | NL | 1893 | 1 |
| Charles Weden | NL | 1889–1890 | 7 |
| Mark Wegner^ | NL, MLB | 1998–present | 3009 |
| Stump Weidman† | NL | 1896 | 55 |
| Jake Weimer‡ | NL | 1905, 1907 | 3 |
| Mickey Welch‡ | NL | 1881–1882, 1885–1886, 1888, 1890 | 7 |
| Bill Welke | AL, MLB | 1999–2022 | 2816 |
| Tim Welke | AL, MLB | 1983–2015 | 4216 |
| Harry Wendelstedt | NL | 1966–1998 | 4500 |
| Hunter Wendelstedt^ | NL, MLB | 1998–present | 3065 |
| Buck West‡ | NL | 1890 | 1 |
| Edward West | AA, NL | 1885, 1887 | 9 |
| George West | NL | 1878 | 1 |
| Joe West | NL, MLB | 1976–1999, 2002–2021 | 5460 |
| Frederick Westervelt | AL, FL, NL | 1911–1912, 1915, 1922–1923 | 344 |
| Lee Weyer | NL | 1962–1988 | 3827 |
| Gus Weyhing‡ | AA, NL | 1891, 1894, 1899–1900 | 4 |
| Bart Whaley | NL | 1995 | 2 |
| Harry Wheeler‡ | AA, UA | 1882, 1884 | 2 |
| Lew Whistler‡ | NL | 1891 | 1 |
| Deacon White$^§$‡ | NL | 1880 | 3 |
| Doc White‡ | NL, AL | 1902-1903 | 2 |
| Gideon White | NL | 1876–1878 | 11 |
| Horatio White | NA | 1873 | 2 |
| Warren White‡ | NA, NL | 1874, 1876 | 3 |
| Will White | NA | 1875 | 1 |
| Jim Whitney‡ | NL | 1884, 1886, 1888 | 3 |
| Chad Whitson^ | MLB | 2014–present | 936 |
| Dan Wickham | NL | 1990–1992 | 47 |
| Mark Widlowski | NL | 1995 | 5 |
| William Wiegel | NA | 1873–1874 | 3 |
| Wiggins | NA | 1875 | 1 |
| Charles Wilbur | NL | 1879 | 19 |
| John Wildey | NA | 1871 | 2 |
| Kaiser Wilhelm‡ | NL, FL | 1904–1905, 1915 | 54 |
| Gardner Willard | NA | 1871 | 1 |
| Art Williams | NL | 1972–1977 | 806 |
| Billy Williams | NL | 1963–1987 | 3432 |
| Charlie Williams | NL, MLB | 1978–2001 | 2810 |
| Dale Williams (umpire) | NL, AL | 1978–1979 | 23 |
| Dale Williams‡ (1870s pitcher) | NL | 1876 | 1 |
| Lew Williams | MLB | 2020–2023 | 33 |
| Ed Williamson‡ | NL | 1878 | 1 |
| Vic Willis$^§$‡ | NL | 1903 | 1 |
| Bob Willman | NL | 1991, 1995 | 7 |
| Ryan Wills^ | MLB | 2020–present | 509 |
| Walt Wilmot‡ | NL | 1897 | 1 |
| Bill Wilson‡ | NL | 1890, 1892–1893 | 9 |
| Frank Wilson | AL, NL | 1921–1928 | 995 |
| Jimmie Wilson‡ | NL | 1940 | 1 |
| John Wilson | NL | 1887 | 14 |
| Parke Wilson‡ | NL | 1894–1896, 1899 | 5 |
| Zeke Wilson‡ | NL | 1896–1897, 1899 | 3 |
| Matt Winans | AL | 1994 | 28 |
| George Winter‡ | AL | 1903, 1905 | 3 |
| Mike Winters | NL, MLB | 1988–2019 | 3810 |
| Adam Wirth | NA | 1875 | 2 |
| Sam Wise‡ | NL | 1889, 1893 | 2 |
| Quinn Wolcott^ | MLB | 2013–present | 1239 |
| Chicken Wolf‡ | NL | 1893, 1895–1897 | 8 |
| Jim Wolf^ | NL, MLB | 1999–present | 2837 |
| Frank Wolke | NA | 1871 | 2 |
| George Wood‡† | AA, NL | 1886, 1889, 1891, 1898 | 93 |
| Jimmy Wood‡† | NA, NL | 1871, 1876 | 4 |
| Tom Woodring | MLB | 2014–2020 | 489 |
| Herb Worth‡ | NA | 1872 | 1 |
| Harry Wright$^§$‡ | NA, NL | 1875–1877, 1885 | 4 |
| Marvin Wright | AL | 1995 | 6 |
| Parry Wright | AA | 1884 | 2 |
| W. S. Wyckoff | NL | 1892 | 1 |

#### Games per league

* ↑ 1 (NL, 1895), 111 (AL, 1915)
* ↑ 6 (NA, 1875), 62 (NL, 1876–80), 236 (AA, 1882–88)
* ↑ 5 (NL, 1896–97, 1901, 1903), 1 (AL, 1908)
* ↑ 136 (NL, 1998–99) 2873 (MLB, 2000–present)
* ↑ 73 (AL, 1999), 2743 (MLB, 2000–22)
* ↑ 2207 (AL, 1983–99), 2009 (MLB, 2000–15)
* ↑ 170 (NL, 1998–99), 2895 (MLB, 2000–present)
* ↑ 8 (AA, 1885, 1887), 1 (NL, 1885)
* ↑ 2991 (NL, 1976–99), 2469 (MLB, 2002–21)
* ↑ 151 (AL, 1911–12), 145 (FL, 1915), 49 (NL, 1922–23)
* ↑ 1 (AA, 1891), 3 (NL, 1894, 1899–1900)
* ↑ 1 (AA, 1882), 1 (UA, 1884)
* ↑ 1 (NL, 1902), 1 (AL, 1903)
* ↑ 1 (NA, 1874), 2 (NL, 1876)
* ↑ 1 (NL, 1904–05), 52 (FL, 1915)
* ↑ 2695 (NL, 1978–99), 115 (MLB, 2000–01)
* ↑ 6 (NL, 1978–79), 17 (AL, 1979)
* ↑ 212 (AL, 1921–22), 783 (NL, 1922–28)
* ↑ 1339 (NL, 1988–99), 2471 (MLB, 2000–19)
* ↑ 8 (NL, 1999), 2829 (MLB, 2020–present)
* ↑ 2 (AA, 1886, 1891), 91 (NL, 1889, 1898)
* ↑ 2 (NA, 1871), 2 (NL, 1876)
* ↑ 1 (NA, 1875), (NL, 1876–77, 1885)

### X

* None

### Y

Y :
| Name | League(s) | Years | Games |
| George Yeager‡ | NL | 1901 | 1 |
| Dave Yeast | NL | 1995 | 7 |
| Tom York‡† | NA, AA, NL | 1874, 1886 | 52 |
| Ben Young | AA | 1886–1887 | 20 |
| Cy Young$^§$‡ | NL, AL | 1896, 1903 | 4 |
| Irv Young‡ | NL | 1905, 1907 | 2 |
| Joseph Young | NL, AA | 1879, 1890 | 7 |
| Larry Young | AL, MLB | 1985–2007 | 2848 |
| Nicholas Young | NA | 1871–1875 | 71 |

#### Games per league

* ↑ 3 (NA, 1874), 16 (AA, 1886), 33 (NL, 1886)
* ↑ 2 (NL, 1896), 2 (AL, 1903)
* ↑ 6 (NL, 1879), 1 (AA, 1890)
* ↑ 1882 (AL, 1985–99), 966 (MLB, 2000–07)

### Z

Z :
| Name | League(s) | Years | Games |
| Thomas Zacharias | NL | 1890 | 52 |
| Chief Zimmer‡† | AA, NL | 1888–1889, 1901, 1904 | 154 |
| Jerry Zimmerman | AL | 1978 | 1 |
| Larry Zirbel | AL | 1979, 1984 | 13 |
| Dick Zivic | AL | 1984 | 0 |
| Rico Zuccaro | AL | 1978 | 1 |

#### Games per league

* ↑ 1 (AA, 1888), 153 (NL, 1889, 1901, 1904)