The 2017 Mountain West Conference football season, part of that year's NCAA Division I FBS football season, was the 19th season of college football for the Mountain West Conference (MW). Since 2012, 12 teams have competed in MW football—the conference's 11 full members, plus football-only member Hawaiʻi. The regular season began on August 26 and ended on November 25. The Mountain West Championship Game was played on December 2, where Mountain Division champion Boise State defeated West Division champion Fresno State to win their first Mountain West championship since 2014.