The 1989–90 Northeast Louisiana Indians men's basketball team represented the University of Louisiana at Monroe in the 1989–90 NCAA Division I men's basketball season. The Indiana, led by head coach Mike Vining, played their home games at Fant–Ewing Coliseum in Monroe, Louisiana, as members of the Southland Conference. They finished the season 22–8, 13–1 in Southland play to win the regular season conference title. They followed that success by winning the Southland tournament to earn an automatic bid to the NCAA tournament as No. 15 seed in the Midwest region. Northeast Louisiana fell to No. 2 seed Purdue in the opening round, 75–63.