Robert Nicholson Dresser (October 4, 1878 – July 27, 1924) was a Major League Baseball pitcher.

As the Beaneaters had a double header that day, Dresser, a left-hander, started one of the games against the Pittsburgh Pirates.

He pitched a complete game in his only major league appearance, losing to the Pirates 6–1.

He also struck out eight batters and issued no walks in his lone performance on the mound at the major league level.

This biographical article relating to an American baseball pitcher born in the 1870s is a stub.