| Year: | 1973 |
| Team: | Iowa State Cyclones |
| Sport: | football |
| Conference: | Big Eight Conference |
| Short Conf: | Big 8 |
| Record: | 4–7 |
| Conf Record: | 2–5 |
| Head Coach: | Earle Bruce |
| Hc Year: | 1st |
| Off Coach: | Jim Weaver |
| Oc Year: | 1st |
| Def Coach: | Marv Braden |
| Dc Year: | 1st |
| Captain: | Larry Hunt, Keith Krepfle |
| Stadium: | Clyde Williams Field |
The 1973 Iowa State Cyclones football team represented Iowa State University in the Big Eight Conference during the 1973 NCAA Division I football season. In their first year under head coach Earle Bruce, the Cyclones compiled a 4–7 record (2–5 against conference opponents), tied for sixth place in the conference, and outscored opponents by a combined total of 245 to 236.[1] [2] They played their home games at Clyde Williams Field in Ames, Iowa.
Larry Hunt and Keith Krepfle were the team captains.[2]