The 1977–78 Idaho Vandals men's basketball team represented the University of Idaho during the 1977–78 NCAA Division I basketball season. Members of the Big Sky Conference, the Vandals were led by fourth-year head coach Jim Jarvis and played their home games on campus at the Kibbie Dome in Moscow, Idaho. They were 4–22 overall and 1–13 in conference play.[1][2]
No Vandals were named to the all-conference team; sophomore forward Reed Jaussi was honorable mention.[3][4]
After four seasons with last place finishes in the conference, Jarvis resigned in June 1978 under recurring allegations[5][6] of illegal recruiting.[7][8][9] The program had been placed on probation for one year in late January, resulting in a reprimand for Jarvis and assistant coach Wes Sodorff by the university.[6][10][11]
Jarvis was succeeded in August by alumnus Don Monson, an assistant at Michigan State,[8] who had significantly greater success; he led the Vandals to a conference title in 1981 and the NCAA Sweet Sixteen in 1982.