The 2015 Louisiana–Lafayette Ragin' Cajuns football team represented the University of Louisiana at Lafayette in the 2015 NCAA Division I FBS football season.

They were led by fifth-year head coach Mark Hudspeth and played their home games at Cajun Field in Lafayette, Louisiana.

The Ragin' Cajuns were members of the Sun Belt Conference.

[1] Roster Last update: January 1, 2018 Louisiana–Lafayette announced their 2015 football schedule on February 27, 2015.

The 2015 schedule consisted of six home and away games in the regular season.