The 1989–90 Major Indoor Soccer League season was the 12th in league history.
GP = Games Played, G = Goals, A = Assists, Pts = Points Most Valuable Player: Tatu, Dallas Scoring Champion: Tatu, Dallas Pass Master: Jan Goossens, Kansas City Defender of the Year: Wes McLeod, Dallas Rookie of the Year: Terry Brown, St Louis Newcomer of the Year: Claudio De Olivieria, St Louis Goalkeeper of the Year: Joe Papaleo, Dallas Coach of the Year: Billy Phillips, Dallas Championship Series Most Valuable Player: Brian Quinn, San Diego Championship Series Unsung Hero: Paul Wright, San Diego