1918–19 Belfast & District League

The Irish League in season 1918–19 was suspended due to the First World War. A Belfast & District League was played instead by 6 teams, and Belfast Celtic won the championship after winning a play-off with Linfield 1–0.

Test match

 * 16 April 1919, Belfast Celtic 1–0 Linfield (Grosvenor Park, Belfast)