The 2018–19 Ole Miss Rebels men's basketball team represented the University of Mississippi in the 2018–19 NCAA Division I men's basketball season, their 109th basketball season. The Rebels were led by first-year, SEC Coach of the Year, Kermit Davis. The Rebels played their games at The Pavilion at Ole Miss in Oxford, Mississippi as members of the Southeastern Conference. The Rebels had an eight-win improvement from their previous season, which was eleventh best in Division I. The Rebels returned to the NCAA Tournament for the first time since 2015, where they were defeated in the first round by 9th seeded Oklahoma.