The following include various records set by major league baseball umpires.
Leagues are abbreviated as follows: In the regular season charts, umpires who are active entering the 2025 season are indicated in boldface; members of the Baseball Hall of Fame are indicated in italics.
[1] Although the totals reflect all games umpired, the years indicate only those seasons in which each individual was employed as a league umpire, omitting seasons in which they may have acted as an emergency substitute during their playing career.
The position of crew chief was not as clearly established in the early years of the 20th century; for the purpose of this list, the crew chief for early World Series is defined as the home plate umpire for Game 1.
Umpires who are active entering the 2025 season are indicated in bold face; members of the Baseball Hall of Fame are indicated in italics.