Irish constitutional referendums, 1968
Two referendums were held simultaneously in the Republic of Ireland on 16 October 1968, each on a proposed amendment of the Irish constitution relating to the electoral system. Both proposals were rejected.
Third amendment, 1968
Fourth amendment, 1968
The Fourth Amendment, 1968 proposed to alter the electoral system for elections to Dáil Éireann from proportional representation under the Single transferable vote to the British 'First Past the Post' system.