Herman Coaker Triplett (December 18, 1911 – January 30, 1992) was an American professional baseball player.

In Major League Baseball, he was a backup outfielder, playing mainly as a left fielder for three different teams between the 1938 and 1945 seasons.

In his college years at Appalachian State, Triplett was a high-scoring football halfback and baseball team captain.

Basically a line-drive hitter and a good fielding replacement, Triplett was one of many players who only appeared in the majors during World War II.

He debuted with the Chicago Cubs, playing for them briefly during the 1938 season before joining the St. Louis Cardinals (1941–1943) and Philadelphia Phillies (1943–1945).