The 2025 San Diego State Aztecs football team represented San Diego State University in the Mountain West Conference (MW) during the 2025 NCAA Division I FBS football season. Led by second-year head coach Sean Lewis, the Aztecs played home games at Snapdragon Stadium in San Diego.
The 2025 season will be the final season for the Aztecs in the Mountain West Conference as San Diego State will move to the Pac-12 Conference in 2026.
The San Diego State Aztecs drew an average home attendance of 26,189, the 82nd-highest of all NCAA Division I FBS football teams.
The Mountain West's preseason media poll was released on July 16, 2025. San Diego State was predicted to finished eighth in the conference.