The 1983–84 Oklahoma Sooners men's basketball team represented the University of Oklahoma in competitive college basketball during the 1983–84 NCAA Division I season. The Oklahoma Sooners men's basketball team played its home games in the Lloyd Noble Center and was a member of the National Collegiate Athletic Association's (NCAA) former Big Eight Conference at that time. The team posted a 29–5 overall record and a 13–1 conference record to finish first in the Conference for head coach Billy Tubbs. This was the first Big Eight Conference Regular Season Championship for Tubbs.