1990–91 Iowa State Cyclones men's basketball team

1990–91 Iowa State Cyclones men's basketball
ConferenceBig Eight Conference
Record12-19 (6-8 Big Eight)
Head coach
Home arenaHilton Coliseum
1990–91 Big Eight Conference men's basketball standings
Conf. Overall
Team W   L   PCT W   L   PCT
No. 14 Oklahoma State 10 4   .714 24 8   .750
No. 12 Kansas 10 4   .714 27 8   .771
No. 11 Nebraska 9 5   .643 26 8   .765
Missouri 8 6   .571 20 10   .667
Iowa State 6 8   .429 12 19   .387
Oklahoma 5 9   .357 20 15   .571
Colorado 5 9   .357 19 14   .576
Kansas State 3 11   .214 13 15   .464
1991 Big Eight tournament winner
As of April 1, 1991
Rankings from AP poll

The 1990–91 Iowa State Cyclones men's basketball team represented Iowa State University during the 1990–91 NCAA Division I men's basketball season. The Cyclones were coached by Johnny Orr, who was in his 11th season. They played their home games at Hilton Coliseum in Ames, Iowa.

They finished the season 12–19, 6–8 in Big Eight play to finish in fifth place. They lost to fourth-seeded Missouri in the 1991 Big Eight conference tournament quarterfinals.

Games were televised by ESPN, Raycom Sports, the Cyclone Television Network, the Hawkeye Television Network, KWWL and Prime Sports.