The 2017–18 Louisiana Ragin' Cajuns women's basketball team represents the University of Louisiana at Lafayette during the 2017–18 NCAA Division I women's basketball season. The Ragin' Cajuns are led by sixth-year head coach Garry Brodhead and play their double-header home games at the Cajundome with the men and single games at the Earl K. Long Gymnasium, which is located on the University of Louisiana at Lafayette campus. They were members in the Sun Belt Conference. They finished the season 17–16, 10–8 in Sun Belt play to finish in a 3 way tie for sixth place. They advanced to the semifinals of the Sun Belt women's tournament where they lost to Texas State.