Seán Treacy (politician)
 Seán Treacy (born 23 September 1923) is a former Irish politician who was Ceann Comhairle (chairman) of Dáil Éireann from 1973 to 1977 and from 1987 to 1997.He was first elected to the Dáil at the 1961 general election as a Labour Party Teachta Dála (TD) for the Tipperary South constituency and was re-elected in seven subsequent elections and returned automatically in three more due to his being Ceann Comhairle.