The 2023 All-Ireland Senior Football Championship is the 136th edition of the Gaelic Athletic Association's premier inter-county Gaelic football tournament since its establishment in 1887. Thirty one of the thirty two Irish counties take part – Kilkenny will not compete, while London and New York complete the lineup. The championship will work as a two-tier system for the second time, with the Tailteann Cup being the second tier competition for those that do not qualify for the Sam Maguire Cup competition. Kerry are the defending champions.