Antwain Smith (born May 1, 1975) is an American professional basketball player in the small forward position.

He attended Saint Paul's College from 1995 to 1999.

Upon college graduation, Smith was selected with the 51st pick of the 1999 NBA draft by the Vancouver Grizzlies, but never played a game with any NBA team.

He went on to play in the IBL with St. Louis Swarm (1999–00, 2000–01) and Richmond Rhythm (2000–01) and the NBDL, for the Fayetteville Patriots (2001–02, started that season in Slovenia).

This biographical article relating to a United States basketball player, coach, or other figure born in the 1970s is a stub.