The 2017–18 Montana State Bobcats men's basketball team represented Montana State University during the 2017–18 NCAA Division I men's basketball season. The Bobcats, led by fourth-year head coach Brian Fish, played their home games at Brick Breeden Fieldhouse in Bozeman, Montana as members of the Big Sky Conference. They finished the season 13–19, 6–12 in Big Sky play to finish in a tie for eighth place. They lost in the first round of the Big Sky tournament to North Dakota.