| Year: | 2003 |
| Team: | Iowa State Cyclones |
| Sport: | football |
| Conference: | Big 12 Conference |
| Division: | North Division |
| Short Conf: | Big 12 |
| Record: | 2–10 |
| Conf Record: | 0–8 |
| Head Coach: | Dan McCarney |
| Hc Year: | 9th |
| Off Coach: | Steve Brickey |
| Oc Year: | 2nd |
| Off Scheme: | Pro-style |
| Def Coach: | John Skladany |
| Dc Year: | 8th |
| Def Scheme: | 4–3 |
| Captain: | Jordan Carstens, Lane Danielsen, Bob Montgomery, Casey Shelton, Chris Whitaker, Joe Woodley |
| Stadium: | Jack Trice Stadium |
The 2003 Iowa State Cyclones football team represented Iowa State University as a member of the North Division of the Big 12 Conference during the 2003 NCAA Division I-A football season. Led by ninth-year head coach Dan McCarney, the Cyclones combined an overall record of 2–10 with a mark of 0–8 in conference play, placing last out of six team in the Big 12's North Division. The team played its home games at Jack Trice Stadium in Ames, Iowa.