<P> The 2017 All - Ireland Senior Football Championship was the 130th edition of the GAA's premier inter-county Gaelic football tournament since its establishment in 1887 . </P> <P> Thirty - three teams took part--thirty - one of the thirty - two Counties of Ireland (Kilkenny, as in previous years, do not enter), London and New York . </P> <P> Dublin won their third championship in a row, defeating Mayo in the final on 17 September 2017 by 1 - 17 to 1 - 16 . </P> <P> Connacht, Leinster, Munster and Ulster each organise a provincial championship . All teams who lose a match in their provincial championship (with the exception of New York) enter the All - Ireland qualifiers . All provincial matches are knock - out . </P>

Who won the all ireland gaelic football final 2017