Following are the regular season results for the 1989–90 Alpha Ethniki professional football league, of the Greek football league system. In 2006 Alpha Ethniki was replaced by Superleague Greece.
Pts = Points Pld = Matches played; W = Matches won; D = Matches drawn; L = Matches lost; F = Goals for; A = Goals against; GD = Goal difference;
Levadiakos had -4 points because of attempting to fix a game in the previous season.
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