| Year: | 2005 |
| Team: | Louisiana Tech Bulldogs |
| Sport: | football |
| Conference: | Western Athletic Conference |
| Short Conf: | WAC |
| Record: | 7–4 |
| Conf Record: | 6–2 |
| Head Coach: | Jack Bicknell Jr. |
| Hc Year: | 7th |
| Off Coach: | Conroy Hines |
| Oc Year: | 6th |
| Def Coach: | Randy Bates |
| Dc Year: | 3rd |
| Captain: | Donald Allen, Aaron Lips, Barry Robertson, Bryan Santiago, Tramon Williams, Quarvay Winbush |
| Stadium: | Joe Aillet Stadium |
The 2005 Louisiana Tech Bulldogs football team represented Louisiana Tech University as a member of the Western Athletic Conference (WAC) during the 2005 NCAA Division I-A football season. Led by seventh-year head coach Jack Bicknell Jr., the Bulldogs played their home games at Joe Aillet Stadium in Ruston, Louisiana. Louisiana Tech finished the season with a record of 7–4 overall and a mark of 6–2 in conference play, tying for third place in the WAC.