Caoimhghín Ó Caoláin (Irish pronunciation:[ˈkɰiːvʲiːnʲoːˈkɰiːlˠaːnʲ]; born 18 September 1953) is an Irish former Sinn Féin politician who served as a Teachta Dála (TD) for the Cavan–Monaghan constituency from 1997 to 2020. Ó Caoláin's victory in 1997 made him the first member of Sinn Féin to be elected to the Dáil since 1957, and the first to actually take their seat since 1922.[2][3][4] His election, which paralleled the signing of the Good Friday Agreement in 1998, is cited as the beginning of Sinn Féin's involvement in the formal national politics of the Republic of Ireland.[2]
Ó Caoláin was born in Monaghan in 1953.[6] He was educated at St. Mary's CBS, Monaghan.[1] He was a bank official with the Bank of Ireland in the 1970s, and worked in a number of towns, including Ballinasloe. He became a senior bank official but then left the bank to concentrate on politics. Ó Caoláin is married to Briege McGinn and they have four daughters and one son.[6]
Ó Caoláin underwent successful cardiac surgery early in 2007. On 19 June 2007, it was reported that he was rushed to hospital,[7] but he was released shortly thereafter and has since made a full recovery.