The 1972–73 Idaho State Bengals men's basketball team represented Idaho State University during the 1972–73 NCAA University Division basketball season.

Led by second-year head coach Jim Killingsworth, the Bengals played their home games on campus at the ISU Minidome in Pocatello.

Idaho State finished the regular season at 18–8 overall, with a 10–4 record in the Big Sky Conference, runner-up to champion Weber State.

[1] The conference tournament debuted three years later, in 1976.

Senior forward Ev Fopma was named to the all-conference team, and senior guard Edison Hicks was on the second team.