The 2019–20 Idaho State Bengals men's basketball team represented Idaho State University during the 2019–20 NCAA Division I men's basketball season.

The Bengals, led by first-year head coach Ryan Looney, played their home games at Reed Gym in Pocatello, Idaho as members of the Big Sky Conference.

They lost in the first round of the Big Sky tournament to Southern Utah.

On March 26, Idaho State decided to not renew the contract of head coach Bill Evans.

[1] He finished at Idaho State with a seven-year record of 70–141.