| Year: | 1958–59 |
| Record: | 9–16 |
| Sport: | Basketball |
| Conference: | Big Eight Conference |
| Short Conf: | Big Eight |
| Team: | Iowa State Cyclones |
| Head Coach: | Bill Strannigan |
| Conf Record: | 4–10 |
| Hc Year: | 5th |
| Stadium: | Iowa State Armory |
The 1958–59 Iowa State Cyclones men's basketball team represented Iowa State University during the 1958–59 NCAA University Division men's basketball season. The Cyclones were coached by Bill Strannigan, who was in his fifth and final season with the Cyclones. They played their home games at the Iowa State Armory in Ames, Iowa.
They finished the season 9–16, 4–10 in Big Eight play to finish in seventh place.
|-!colspan=6 style=""|Regular season|-[2]