The 2026 O'Byrne Cup is a Gaelic football competition for county teams in the province of Leinster.
The draw was announced in November 2025, with the competition scheduled to commence on 3 January. [1] Features expected include penalties to decide matches instead of extra time, any number of substitutions permitted, matches being reduced to 60 minutes, and "a Shield competition" intended to guarantee every team is involved in more than one match. [2] The final is scheduled for 17 January. [3]