James Blanco Martin (born July 21, 1961, in Hayward, California, a city in the East Bay Area,) known professionally as Big Jim Martin, is an American guitarist best known for his membership in the rock band Faith No More from 1983 to late 1993. Martin also played guitar with the groups EZ-Street, Vicious Hatred, Agents of Misfortune, Recluse, and Pigs of Death.
Martin was known for his long hair, bushy beard, and trademark red-rimmed glasses that he wears alone or over another darker pair of glasses.