1904 Southern Intercollegiate Athletic Association football season

The 1904 Southern Intercollegiate Athletic Association football season was the college football games played by the member schools of the Southern Intercollegiate Athletic Association as part of the 1904 college football season. The season began on September 24 with conference member Sewanee hosting the Mooney School.

1904 saw new coaches Mike Donahue at Auburn and Dan McGugin at Vanderbilt, both of which posted undefeated conference records. McGugin remains the only coach in NCAA history to win his first three games by 60 points. Both McGugin and Donahue were inaugural inductees into the College Football Hall of Fame. The SIAA forbade a postseason contest between Auburn and Vanderbilt.

Also significantly, John Heisman was hired at Georgia Tech.

Results and team statistics
Key

PPG = Average of points scored per game PAG = Average of points allowed per game

Regular season
SIAA teams in bold.

All-Southern team
The composite All-Southern team compiled by John de Saulles included: