Recognition of same-sex unions in Monaco

Monaco has recognised same-sex cohabitation agreements since 27 June 2020. On 4 December 2019, the National Council passed a bill 22–0 establishing cohabitation agreements offering both same-sex and opposite-sex couples limited legal rights and benefits in the areas of inheritance and property. The bill was signed into law by Prince Albert II on 17 December, and took effect on 27 June.

In March 2022, a court ordered the government to recognize a same-sex marriage validly performed in the United States. This ruling was upheld by the Court of Appeal, but the decision was overturned by the Court of Revision on 18 March 2024.