The 2018–19 Ohio Bobcats men's basketball team represented Ohio University during the 2018–19 NCAA Division I men's basketball season. The Bobcats, led by fifth-year head coach Saul Phillips, played their home games at the Convocation Center in Athens, Ohio as a member of the East Division of the Mid-American Conference. In non-conference play they had wins over eventual MAAC champion Iona, and both co-champions of the Big South in Radford and Campbell as well as a win over their rival and eventual CIT champion Marshall. They finished the season 14–17 overall, 6–12 in MAC play to finish in last place in the East Division. As the No. 10 seed in the MAC tournament, they were defeated in the first round by Northern Illinois.