Matthew William Wagner (born April 4, 1972), is a former Major League Baseball pitcher who played in 1996 with the Seattle Mariners.

He batted and threw right-handed.

Wagner had a 3-5 record, with a 6.86 ERA, in 15 games, in his one-year career.

He was drafted by the Mariners in the 3rd round of the 1994 amateur draft.

This biographical article relating to an American baseball pitcher born in the 1970s is a stub.