Daniel Joseph Cotter (April 14, 1867 – September 4, 1935) was an American Major League Baseball pitcher who played with the Buffalo Bisons of the Players' League in 1890.

Cotter played in one game for the Bisons on July 16, 1890.

He pitched a complete game, but allowed 18 hits, 7 base on balls, and 14 earned runs.

[1] Cotter later played for the Lewiston, Maine ballclub of the New England League in 1892.

This biographical article relating to an American baseball pitcher born in the 1860s is a stub.