The 1984–85 Iowa State Cyclones men's basketball team represented Iowa State University during the 1984–85 NCAA Division I men's basketball season.
The Cyclones were coached by Johnny Orr, who was in his 5th season.
They played their home games at Hilton Coliseum in Ames, Iowa.
The Cyclones advanced to the Big Eight tournament championship game against #4 Oklahoma, falling 73–71.
They qualified for the NCAA Tournament as a 13 seed, falling in the first round to 4 seed Ohio State, 75–64.