John Joseph O'Reilly (24 April 1881 – 28 December 1967) was an Irish Cumann na nGaedheal and later Fine Gael politician and physician. He was born in Carrigallen, County Leitrim and practised as a GP in Tullyvin, County Cavan. He was first elected to Dáil Éireann as a Cumann na nGaedheal Teachta Dála (TD) at the March 1925 by-election for the Cavan constituency. He was re-elected at each subsequent election until the 1937 general election when he lost his seat to John James Cole, an independent Unionist. References 1881 births 1967 deaths Cumann na nGaedheal TDs Fine Gael TDs Members of the 4th Dáil Members of the 5th Dáil Members of the 6th Dáil Members of the 7th Dáil Members of the 8th Dáil Politicians from County Leitrim Politicians from County Cavan