Thomas J. Lynch (1859 – February 27, 1924) was an umpire in Major League Baseball for 13 seasons, all of which were in the National League (NL), between the years of 1888 and 1902.

[1] Known as an honest, but sometimes brash umpire, he later became NL president in 1910 as a compromise among the major league owners.

[2] Although his time as league president was considered uneventful, he was replaced following the 1913 season.

[2] In 1946 Lynch had been named to the Honor Rolls of Baseball by the National Baseball Hall of Fame.

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