Patrick Michael Pacillo (born July 23, 1963) is an American former professional baseball player.

[3] In 1988, Pacaillo was traded to the Montreal Expos along with Tracy Jones for Randy St. Claire, Jeff Reed, and Herm Winningham.

Pacillo is perhaps best remembered for replacing Pete Rose on the Reds' 40-man roster following the 1986 season.

Rose, who by that point was serving as the team's player-manager, removed himself from the roster in order to make room for Pacillo.

Notable teammates included Will Clark, Barry Larkin, Mark McGwire, B. J. Surhoff, Bill Swift, and Bobby Witt.