Thomas Raymond Quinlan (born March 27, 1968) is an American former third baseman in Major League Baseball. Quinlan spent parts of four seasons in the major leagues with the Toronto Blue Jays, Philadelphia Phillies and Minnesota Twins. He is the older brother of Robb Quinlan, also a former Major League Baseball player. Tom and Robb Quinlan are part of the ownership group for the St. Croix River Hounds, a collegiate summer baseball team intended to play in the Northwoods League though they are not on the 2022 schedule.