Canadian baseball player

Gregory Joseph O'Halloran (born May 21, 1968) is a Canadian former professional baseball catcher. He played for the Florida Marlins of Major League Baseball (MLB) for 12 games during the 1994 season, serving mostly as a pinch hitter.

External links

• Career statistics and player information from Baseball Reference, or:Baseball Reference (Minors), or:Retrosheet, or Pelota Binaria (Venezuelan Winter League)