The 1983–84 UC Irvine Anteaters men's basketball team represented the University of California, Irvine during the 1983–84 NCAA Division I men's basketball season. The Anteaters were led by fourth year head coach Bill Mulligan and played their home games at the Crawford Hall. They were members of the Pacific Coast Athletic Association. They finished the season 19–10 and 14–4 in PCAA play.