in Europe (dark grey)  –  [Legend]Lesbian, gay, bisexual, and transgender (LGBT) people in San Marino may face legal challenges not experienced by non-LGBTQ residents.

The law, which took effect on 5 December 2018 and became fully operational on 11 February 2019, following a number of further legal and administrative changes, allows same-sex and opposite-sex couples to enter into a union and receive some of the rights and benefits of marriage.

On 15 November 2018, the San Marino Grand Council approved a bill to legalise civil unions in the microstate.

[4] In December 2017, the Sammarinese Parliament approved an amendment to a proposed 2018 budget law that would allow same-sex marriages of foreign couples to be performed in San Marino, with the aim of encouraging tourism.

On 28 April 2008, the Sammarinese Parliament approved amendments to the Penal Code, outlawing discrimination and hate speech on the basis of sexual orientation.

In November 2018, during the final discussion of the civil union law, Deputy Davide Forcellini of the RETE Movement proposed to explicitly add the term sexual orientation to Article 4 of the Constitution.

When LGBT groups in San Marino asked the government to recognize 17 May as the International Day Against Homophobia, Transphobia and Biphobia in the early 2000s, their proposition was rejected.

In 2022, with the election of Paolo Rondelli to the office of Captain Regent, San Marino became the first country in history with an openly homosexual head of state.