Seán Hayes (1890 – 16 February 1968) was an Irish politician. He was a Fianna Fáil Teachta Dála (TD) for 10 year, and later a senator for 22 years. Hayes was first elected to Dáil Éireann at the June 1927 general election as a TD for the Tipperary constituency, and held the seat until his defeat at the 1937 general election. He stood again at the 1943 general election and at by-election in 1947, but never returned to the Dáil.