Jeffrey Joseph Musselman (born June 21, 1963) is a former Major League Baseball pitcher.

Musselman graduated from Central Regional High School in Bayville, New Jersey, and Harvard University.

His best season in the majors was 1987, when he appeared in 68 games for Toronto, posting a 12–5 record with a 4.15 ERA at 54 strikeouts in 89 innings of work.

On July 31, 1989, he was traded by the Toronto Blue Jays with minor leaguer Mike Brady to the New York Mets for Mookie Wilson.

After retiring as a player, Musselman remained in baseball as a vice-president in the offices of sports agent Scott Boras.