The 2015 NCAA Division I FCS football season, part of college football in the United States, was organized by the National Collegiate Athletic Association (NCAA) at the Division I Football Championship Subdivision (FCS) level.

The season began on August 29, 2015, and concluded with the 2016 NCAA Division I Football Championship Game played on January 9, 2016, at Toyota Stadium in Frisco, Texas.

(FCS rankings from the STATS poll) September 4: No.

25 The Citadel 23, South Carolina 22 Note: Records are regular-season only, and do not include playoff games.

* Home team    † Overtime    Winner Home facilities for the two new FCS programs in the 2015 season: This is restricted to coaching changes that took place on or after May 1, 2015.