The 2017 Mountain West Conference Championship Game was played on Saturday, December 2, 2017 at Albertsons Stadium in Boise, Idaho, to determine the 2017 football champion of the Mountain West Conference (MW).

Even though the two teams played a conference game on November 25, with Fresno State winning, the MW does not use head-to-head results as its first tiebreaker in such a situation.

Fresno State was ranked in the final CFP poll and would have been the host, but the CFP poll did not come out until Tuesday evening and a host selection was needed prior to its release for logistical reasons.

The second tiebreaker of a composite of computer rankings was used, with Boise State receiving hosting rights.

They defeated Boise State in their regular season matchup just one week before the championship game, 28–17.