The 1908 LSU Tigers football team represented the LSU Tigers of Louisiana State University during the 1908 college football season. Coached by Edgar Wingard, the Tigers played their way to a 10–0 record and conference title. The Tigers have been recognized as national champions by the National Championship Foundation; however, LSU does not officially recognize this season as a national championship season and it was clouded by accusations of professionalism from rival school Tulane which was also undefeated in conference play.Auburn and Vanderbilt were amongst those listed as alternative conference champions.
LSU met undefeated Auburn for the top spot in the SIAA at the Auburn athletic field. Auburn fumbled to LSU on its opening drive, and after an unsuccessful series of downs by each team, LSU launched a 51-yard scoring drive capped by a 40 yard touchdown pass from Doc Fenton to Mike Lally to bring the score to 5–0 in LSU's favor. Later in the half, Auburn's T. C. Locke blocked an LSU punt which was recovered by LSU's Fenton behind his own goal for a safety. After a short LSU drive in the second half, the teams traded free kicks on goal, none of which were successful, before Fenton returned an Auburn kick 35 yards to the Auburn 40 yard line. LSU drove to the Auburn 25, where Lally scored a touchdown around left end. LSU missed their second PAT of the game to leave the score at 10–2 in the visitor's favor. The remainder of the game was made up of short drives, kicks, and several penalties, including an ejection of LSU's captain Gandy for unnecessary roughness.