Seanad Éireann (; Senate of Ireland) was the upper house of the Oireachtas (parliament) of the Irish Free State from 1922 to 1936. It has also been known simply as the Senate, or as the First Seanad. The Senate was established under the 1922 Constitution of the Irish Free State but a number of constitutional amendments were subsequently made to change the manner of its election and its powers. It was eventually abolished in 1936 when it attempted to obstruct constitutional reforms favoured by the government. It sat, like its modern successor, in Leinster House.