Patrick J. Cahill (died 12 November 1946) was an Irish Sinn Féin politician and newspaper editor. He was leader of the Kerry 1st Brigade of the Irish Republican Army. His units operated in and around Tralee during the Irish War of Independence. Due mainly to his status in that organization, he was chosen to run unopposed as a Sinn Féin Teachta Dála (TD) to the 2nd Dáil at the 1921 elections for the Kerry–Limerick West constituency.[1] He opposed the Anglo-Irish Treaty and voted against it. He was re-elected unopposed as an anti-Treaty Sinn Féin TD to the 3rd Dáil at the 1922 general election though he did not take his seat. He was elected as a Sinn Féin TD at the 1923 general election for the Kerry constituency. He did not stand in the June 1927 general election.[2]