The 1973–74 Idaho State Bengals men's basketball team represented Idaho State University during the 1973–74 NCAA Division I men's basketball season. The Bengals were led by third-year head coach Jim Killingsworth and played their home games on campus at the ISU Minidome in Pocatello. They finished the regular season at 19–7 overall, with a 11–3 record in the Big Sky Conference, as did the Montana Grizzlies, and the teams split their season series. Senior forward Jim Anderson was named to the all-conference team; senior center Dan Spindler and junior guard Kevin Hoyt were honorable mention.