The 2017–18 Louisiana Ragin' Cajuns women's basketball team represented the University of Louisiana at Lafayette during the 2017–18 NCAA Division I women's basketball season.

The Ragin' Cajuns were led by sixth-year head coach Garry Brodhead and played 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's campus.

They advanced to the semifinals of the Sun Belt women's tournament where they lost to Texas State.

They made it to the 2016–17 Sun Belt Conference women's basketball championship game after defeating Louisiana–Monroe, Texas State and Little Rock in the first round, quarterfinals and the semifinals, respectively.

They lost in heartbreaking fashion against Troy in the championship by the score of 64–78.