The Leo Lalonde Memorial Trophy is inaugurated for the overage player of the year.
Fifteen teams each played 70 games.
The Ottawa 67's won the J. Ross Robertson Cup, defeating the Kitchener Rangers.
Note: GP = Games played; W = Wins; L = Losses; T = Ties; GF = Goals for; GA = Goals against; PTS = Points; x = clinched playoff berth; y = clinched first round bye; z = clinched division title & first round bye [1]
The Sudbury Wolves held the first overall pick in the 1984 Ontario Priority Selection and selected Dave Moylan from the St. Mary's Lincolns.