Gregory Joseph O'Halloran (born May 21, 1968) is a Canadian former professional baseball catcher.
O'Halloran attended a high school in Mississauga, Ontario which did not field a baseball team; he instead played baseball in competitive summer leagues. As a child, he thought of baseball simply as "something I did in the summer when I wasn't playing hockey."[1]
O'Halloran played college baseball at Orange Coast College in California and accepted a scholarship to continue his college baseball career at Illinois. In advance of the 1988 Major League Baseball draft, he told all interested teams, except for his childhood favorites, the Toronto Blue Jays, that he intended to play at Illinois even if drafted.[1] With their pick in the 32nd round, the Blue Jays selected and signed O'Halloran.[2]