1972 Irish constitutional referendums

Two referendums were held together in Ireland on 7 December 1972, each on a proposed amendment of the Irish constitution. Both proposals were approved by voters.

Fourth amendment
The Fourth Amendment to the constitution lowered the voting age for all national elections and referendums in the state from twenty-one to eighteen years of age

Fifth amendment
The Fifth Amendment to the constitution removed reference to "special position" of the Roman Catholic Church and to certain other named denominations.