The 2018 Leinster Senior Football Championship was the 2018 installment of the annual Leinster Senior Football Championship organised by Leinster GAA.
[1] Dublin, the defending champions, won their eighth consecutive championship title, defeating Laois in the final.
The Leinster championship was contested by 11 of the 12 county teams in Leinster, a province of Ireland.
Kilkenny was the only county team not to compete.