| Sport: | football |
| Year: | 2003 |
| Team: | Idaho Vandals |
| Conference: | Sun Belt Conference |
| Short Conf: | SBC |
| Record: | 3–9 |
| Conf Record: | 3–4 |
| Head Coach: | Tom Cable |
| Hc Year: | 4th |
| Off Coach: | Bret Ingalls |
| Oc Year: | 4th |
| Def Coach: | Ed Lamb[1] |
| Dc Year: | 2nd |
| Off Scheme: | Pro-style |
| Def Scheme: | Multiple |
| Stadium: | Kibbie Dome |
The 2003 Idaho Vandals football team represented the University of Idaho during the 2003 NCAA Division I-A football season. Idaho was a football-only member of the Sun Belt Conference, and played their home games in the Kibbie Dome, an indoor facility on campus in Moscow. The Vandals went under head coach and alumnus Tom Cable, in his fourth and
Prior to Cable's arrival in 2000, Idaho had just two losing seasons (1981, 1997) in two decades; he had four consecutive with a record and was fired immediately after
One Vandal senior was selected in the 2004 NFL draft, which lasted seven rounds (255 selections).
| Player | Position | Round | Overall | Franchise | |
| 5th | 141 | Indianapolis Colts |