| Mode: | football |
| Year: | 2004 |
| Team: | BYU Cougars |
| Conference: | Mountain West |
| Short Conf: | MW |
| Record: | 5–6 |
| Conf Record: | 4–3 |
| Head Coach: | Gary Crowton |
| Hc Year: | 4th |
| Off Coach: | Todd Bradford |
| Oc Year: | 2nd |
| Def Coach: | Bronco Mendenhall |
| Dc Year: | 2nd |
| Off Scheme: | Spread |
| Def Scheme: | 3–3–5 |
| Stadium: | LaVell Edwards Stadium |
The 2004 BYU Cougars football team represented Brigham Young University during the 2004 NCAA Division I-A football season.
[1] •SportsWest Productions (SWP) games were shown locally on KSL 5.
The BYU Cougars radio network carried every game on radio using the broadcast trio of Greg Wrubell (pxp), Marc Lyons (analyst), and Bill Riley or Andy Boyce (sidelines). KSL 1160 AM served as the flagship station for BYU Football.