1939–40 Irish League

Irish League
Season1939–40
ChampionsBelfast Celtic
13th Irish title
Matches played182
Goals scored869 (4.77 per match)
Location of Belfast-based teams in the Irish League from 1934–40

The 1939–40 Irish League was the 46th edition of the Irish League, the highest level of league competition in Northern Irish football. The league comprised 14 teams, and Belfast Celtic won the championship.