Cornelius Collins (Irish: Conchobhar Ó Coileáin), Irish Sinn Féin politician known as Con Collins, is born in Arranagh, Monagea, Newcastle West, County Limerick, on November 13, 1881.

Collins has joined the Gaelic League by 1910 when working in London for the civil service, as had Michael Collins the previous year. He is a member of the Irish Volunteers and the Irish Republican Brotherhood (IRB). He and Austin Stack are on their way to meet Sir Roger Casement at Banna Strand in County Kerry in 1916 during a failed attempt to land arms for Irish Republicans from the German vessel Aud, when they are arrested by the British authorities on Easter Saturday. They spend Easter Week in Tralee Barracks and in solitary confinement on Spike Island, County Cork. They are then held with Terence MacSwiney, Arthur Griffith and others in Richmond Barracks before being sentenced to penal servitude for life. He is deported to Frongoch internment camp in Wales where he spends the rest of the year and much of 1917.

Collins is elected as a Sinn Féin MP for West Limerick at the 1918 Irish general election. In January 1919, Sinn Féin MPs who had been elected in the Westminster elections of 1918 refuse to recognise the Parliament of the United Kingdom and instead assemble at the Mansion House in Dublin as a revolutionary parliament called Dáil Éireann. At the 1921 Irish elections he is elected for the constituency of Kerry–Limerick West. He opposes the Anglo-Irish Treaty and votes against it.

Collins refuses an offer of the Ministry for Posts and Telegraphs provided he switch to the pro-Treaty side. Having been sworn to non-violence – together with Richard Mulcahy – by the Augustinians, he does not join the anti-Treaty forces. He is again re-elected for Kerry–Limerick West at the 1922 Irish general election, this time as anti-Treaty Sinn Féin Teachta Dála (TD). He does not contest the 1923 Irish general election and retires from politics.

Collins dies in Dublin on November 23, 1937, at the age of 56, and is buried in Mount St. Lawrence cemetery, Limerick.

He and Piaras Béaslaí share a distinction in that they contest and are elected in three Irish general elections unopposed by any other candidates.

(Pictured: Wedding photo of Sinn Féin politician Con Collins, September 12, 1923)