Gary Willis (b. 28 March 1957) is an American bassist and composer known foremost as the co-founder (with Scott Henderson) of the jazz fusion band Tribal Tech. Aside from his work in Tribal Tech, Willis has worked with numerous other jazz musicians including Wayne Shorter, Dennis Chambers, and Allan Holdsworth. "Slaughterhouse 3", released in 2006, continued his collaboration with drummer Kirk Covington as well as saxophonist Llibert Fortuny to form a modern jazz/funk/groove power-trio.