1915 Southern Intercollegiate Athletic Association football season

The 1915 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 1915 college football season. The season began on September 25.

Seven out of eight newspapers voted the SIAA championship to the Vanderbilt Commodores. The Atlanta Constitution declared it a tie between Vanderbilt and Georgia Tech, which was then independent. However, Tech challenged Vandy's championship.

Regular season
SIAA teams in bold.

All-Americans

 * T - Bully Van de Graaff, Alabama (WC-2; PD-1)
 * T - Josh Cody, Vanderbilt (WC-3)
 * G - Baby Taylor, Auburn (WC-3)

All-Southern team
The composite All-Southern team selected by ten sports writers and coaches included: