Matthew Allen Geiger (born September 10, 1969) is an American former professional National Basketball Association (NBA) player who played at the center position.

His successful college career led Geiger to be selected by the Miami Heat in the second round (42nd pick overall) of the 1992 NBA draft.

He played in the NBA for 10 seasons from 1992 to 2002 with 3 teams: Miami Heat, Charlotte Hornets, and Philadelphia 76ers.

[1] In the summer of 2000, Matt Geiger's refusal to waive a $5 million trade kicker clause in his contract stopped a four-team deal between Philadelphia, the Hornets, the Detroit Pistons and the L.A. Lakers that would have sent All-Star player Allen Iverson to the Pistons.

[3] Geiger signed a contract in 2001 with the Philadelphia 76ers but knee injuries forced him to retire in 2002 after a ten-year career.