The 1990 Calder Cup Playoffs of the American Hockey League began on April 4, 1990. The eight teams that qualified, four from each division, played best-of-7 series for Division Semifinals and Division Finals. The division champions played a best-of-7 series for the Calder Cup. The Calder Cup Final ended on May 18, 1990 with the Springfield Indians defeating the Rochester Americans four games to two to win the Calder Cup for the sixth time in team history. Despite an injury preventing him from playing in the final game, Springfield goaltender Jeff Hackett won the Jack A. Butterfield Trophy as the MVP of the playoffs.