Matthew Clark Duff (born October 6, 1974) is a former Major League Baseball pitcher and hunter.
Duff grew up in Alligator, Mississippi. He appeared in seven games for the St. Louis Cardinals in 2002. He now runs a bowhunting business and appears in such shows as Buck Commander and Major League Bowhunter, which he owns and co-hosts. Duff is also the co-host of the Friends of NRA TV show alongside ex-wife and worldwide women's shooting champion Jessie Duff.