1989–90 Irish League

Irish League
Season1989–90
ChampionsPortadown
1st Irish title
Matches182
Goals510 (2.8 per match)
Top goalscorerMartin McGaughey (19 goals)
Location of Belfast-based teams in the Irish League from 1983–1990

The 1989–90 Irish League was the 89th edition of the Irish League, the highest level of league competition in Northern Irish football. The league consisted of 14 teams, and Portadown won the championship.