1988–89 St. John's Redmen basketball team

The 1988–89 St. John's Redmen basketball team represented St. John's University during the 1988–89 NCAA Division I men's basketball season. The team was coached by Lou Carnesecca in his twenty first year at the school. St. John's home games are played at Alumni Hall and Madison Square Garden and the team is a member of the Big East Conference.

Schedule and results
!colspan=9 style="background:#FF0000; color:#FFFFFF;"| Regular season

!colspan=9 style="background:#FF0000; color:#FFFFFF;"| Big East tournament

!colspan=9 style="background:#FF0000; color:#FFFFFF;"| NIT