1904–05 Irish League

The 1904–05 Irish League was the 15th edition of the Irish League, the highest level of league competition in Irish football.

The league comprised 8 teams, and Glentoran won the championship after winning a play-off with Belfast Celtic by a score of 3–1.

Test match

 * 1 April 1905, Glentoran 3–1 Belfast Celtic (Grosvenor Park, Belfast)