Same-sex marriage — Ireland

Marriage by referendum in 2015 — the first country in the world to legislate it by popular vote.

Location map — Ireland — Same-sex marriage
Ireland. Simplified location map — Natural Earth data, public domain.

The legal framework

Ireland approved marriage equality by referendum on 22 May 2015, with 62 per cent in favour and a turnout above sixty per cent, and the Marriage Act followed in October of that year. Civil partnerships, introduced in 2010, are no longer created; existing ones remain until converted or dissolved. Parenthood was addressed separately by the Children and Family Relationships Act.

Ireland is the only country to have introduced marriage equality by a popular vote initiated for that purpose, and the campaign is often cited as a model: a broad civil-society coalition, personal testimony rather than legal argument, and a result strong enough to end the debate. The Catholic Church's formal opposition made little difference to the outcome — a marker of how quickly Irish society had changed.

Key points

MarriageSince November 2015, following the referendum of 22 May 2015
Referendum62 per cent in favour — a world first by popular vote
Civil partnershipNo new ones since 2015; existing partnerships remain valid
AdoptionJoint adoption available to married and cohabiting couples
ParenthoodSecond female parent recognised where a licensed clinic and a traceable donor are used
SurrogacyDomestic surrogacy regulated by recent legislation; international routes remain complex
DiscriminationEmployment Equality and Equal Status Acts

In practice

Cost and coverage

The notification fee to the registrar and the ceremony fee together come to a few hundred euro at a registry office. Assisted reproduction is largely private, though a public funding scheme has been introduced.

Recent changes

Legislation on assisted human reproduction and on domestic surrogacy has been enacted, creating for the first time a statutory framework and a regulator, with pathways to parentage that had previously depended on adoption.

Where to go

Worth knowing

Retrospective parentage for children conceived before the current rules has been dealt with only in part: if your child was born before the scheme came into operation, take advice rather than assuming.

Frequently asked questions

Does a civil partnership become a marriage automatically?

No. Existing civil partnerships remain in force, and the couple must marry if they want the status of marriage. No new civil partnerships have been registered since the Marriage Act commenced.

How is the second mother recognised?

Through the statutory route under the Children and Family Relationships Act: conception at a licensed clinic with a traceable donor and the required consents. Outside that route, she is not a legal parent and adoption is the remaining option.

Official sources and links

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Page checked in September 2026. The instruments cited can change: if in doubt, confirm with the official source given.

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