The 1988–89 McNeese State Cowboys basketball team represented the McNeese State University during the 1988–89 NCAA Division I men's basketball season.
The Cowboys, led by head coach Steve Welch, played their home games at Burton Coliseum and were members of the Southland Conference.
They finished the season with a record of 16–14, 9–5 in Southland play.
They won the 1989 Southland Conference men's basketball tournament to earn an automatic bid in the 1989 NCAA Division I men's basketball tournament as No.
This college basketball season article is a stub.