The 1989–90 Northern Iowa Panthers men's basketball team represented the University of Northern Iowa as a member of the Mid-Continent Conference during the 1989-90 NCAA Division I men's basketball season.
The team was led by head coach Eldon Miller and played their home games at the UNI-Dome in Cedar Falls, Iowa.
The Panthers won the Mid-Con tournament to earn an automatic bid to the NCAA tournament — the school’s first trip to the "Big Dance."
The team finished with a record of 23–9 (6–6 in the Mid-Con).
The 1989–90 team was inducted into the UNI Athletics Hall of Fame in 2011.