The 2015 Coastal Carolina Chanticleers football team represented Coastal Carolina University as a member of the Big South Conference during the 2015 NCAA Division I FCS football season.

Led by fourth-year head coach Joe Moglia, the Chanticleers compiled an overall record of 9–3 with a mark of 4–2 in conference play, placing second in the Big South.

Coastal Carolina received an at-large bid NCAA Division I Football Championship playoffs, where the Chanticleers lost in the first round to The Citadel.

The Chanticleers joined the Sun Belt Conference in July 2016, initially as a full but non-football member.

The football program began transition to the NCAA Division I Football Bowl Subdivision (FBS), joining Sun Belt football in 2017 and gaining full FBS membership and bowl eligibility in 2018.