Kevin Michael O'Sullivan (born December 27, 1968) is an American college baseball coach and former player.

O'Sullivan is best known for leading the Gators to the program's first College World Series national championship win in 2017.

He became the winningest coach in program history in 2021, surpassing Dave Fuller's 1975 record of 557 wins.

[5] O'Sullivan accepted the baseball head coaching position at the University of Florida offered by athletics director Jeremy Foley on June 13, 2007, replacing Pat McMahon after the Gators failed to receive an NCAA tournament bid in either 2006 or 2007.

[6][7] During his tenure at Clemson, twenty-nine of the pitchers he coached were selected in the MLB Draft.

[6] In each of his four seasons coaching the Gators, O'Sullivan's teams have improved their overall win–loss record and Southeastern Conference (SEC) standing.

2 seed in the 2011 NCAA tournament,[10] and advanced to their second consecutive College World Series,[11] ultimately finishing as the national runner-up.