Harry Andrew Sullivan (April 22, 1888 – September 22, 1919) was a pitcher in Major League Baseball who played for the St. Louis Cardinals during the 1909 season.

[1] Born in Rockford, Illinois, Sullivan attended Saint Louis University.

He joined the Cardinals late in the season, appearing for them in two games, including one start.

He allowed six runs (four earned) on four hits and two walks for a 36.00 ERA.

This biographical article relating to an American baseball pitcher born in the 1880s is a stub.