The Very Reverend Patrick Augustine Canon Sheehan (in Irish: An Canónach Pádraig Aguistín Ó Síothcháin; 17 March 1852 – 5 October 1913) was an Irish Catholic priest, author and political activist. He was invariably known and referred to as Canon Sheehan of Doneraile, having been appointed on 4 July 1895 as Parish Priest of Doneraile, where he wrote almost all of his major works.