The 1969–70 AHL season was the 34th season of the American Hockey League. Nine teams played 72 games each in the schedule. The Montreal Voyageurs became the second Canada-based team in the league, and finished first overall in the regular season. This would be the last season for the Buffalo Bisons in the AHL as the National Hockey League added the Buffalo Sabres who would begin play the next season, the Bisons would go out on top by winning their fifth Calder Cup championship.

Team changes

Final standings

Note: GP = Games played; W = Wins; L = Losses; T = Ties; GF = Goals for; GA = Goals against; Pts = Points;

Scoring leaders

Note: GP = Games played; G = Goals; A = Assists; Pts = Points; PIM = Penalty minutes

Calder Cup playoffs

Trophy and award winners