Theodore Physick Cather (May 20, 1889 – April 9, 1945) was an American Major League Baseball player who played outfielder from 1912–1915.

He would play for the St. Louis Cardinals and Boston Braves.

In 1914, Cather was a member of the Braves team that went from last place to first place in two months, becoming the first team to win a pennant after being in last place on the Fourth of July.

[1] In a brief 4-year, 201 game major league career, Cather recorded a .252 batting average (138-for-548) with 60 runs, 2 home runs and 72 RBI.