Background and Constitutional Court ruling In May 1928, Thai media reported the story of a marriage between two women in Bangkok. One of the spouses was shot dead a month later. In September 2011, the
National Human Rights Commission (NHRC) and the Sexual Diversity Network proposed draft legislation on same-sex marriage and called on the
Thai Government to support its legalisation. In September 2013, the
Bangkok Post reported that an attempt in 2011 by Natee Teerarojjanapong, the president of the Gay Political Group of Thailand, to register a marriage with his male partner had been rejected. Several other couples made similar attempts over the following years. In 2021, the
Constitutional Court ruled that section 1448 of the Civil and Commercial Code defining marriages as only being between "men and women" was constitutional. The court stated that same-sex couples "cannot reproduce, as it is against nature, and that people of those communities are no different to other animals with strange behaviours or physical features". The verdict cited LGBT people as a different "species" that needed to be "separated and studied as they are incapable of creating the delicate bond of human relationships". The text was criticised by LGBT activists as "sexist and demeaning". The court ruling stated:
Marriage Equality Act In June 2020, Deputy Tunyawat Kamolwongwat from the
Move Forward Party introduced a bill to legalise same-sex marriage to the National Assembly. A
public consultation on the bill was launched on 2 July 2020. In June 2022, a couple of same-sex union bills passed their
first readings in Parliament. These included the
Marriage Equality Bill proposed by the opposition Move Forward Party, which would have amended the Civil and Commercial Code and opened marriage to couples of any gender, and a government-proposed civil partnership bill, which would have instead introduced civil partnerships as a separate category, granting some, but not all, of the rights given to married couples. Despite several amendments, neither bill passed Parliament before it was dissolved ahead of the
2023 election. In November 2023, Prime Minister
Srettha Thavisin of the
Pheu Thai Party announced that his
government had approved a draft same-sex marriage law, which Parliament began to debate on 21 December 2023. Three versions proposed by the Move Forward Party and the
Democrat Party were also considered. All four bills passed overwhelmingly by 369 votes to 10 on 21 December 2023, and the
House of Representatives approved the formation of an ad-hoc committee to combine the four draft bills into one over 15 days, before further debates in 2024. The bill passed its first reading in the
Senate on 2 April by a 147 to 4 vote. On 29 May, the chair of the ad-hoc committee said that the Senate was expected to vote on the bill on 18 June. That day, the bill was approved by the Senate in its final reading without amendments. It received
royal assent from King
Vajiralongkorn on 12 August, and was published in the
Royal Gazette on 24 September 2024. The law came into effect on 23 January 2025. Prime Minister
Paetongtarn Shinawatra welcomed the promulgation on social media. The enactment of the
Marriage Equality Act (, , ) made Thailand the first country in
Southeast Asia and the second in
Asia after
Taiwan to legalise same-sex marriage. Article 1,448 of the Civil and Comerical Code now reads: Ahead of the law's implementation,
Bangkok Pride leader
Ann Chumaporn stated that the organisation would work with the
Bangkok Metropolitan Administration to organise a mass wedding ceremony on 23 January 2025, with the goal of having 1,448 same-sex couples participate, symbolising the Civil and Commercial Code section amended by the
Marriage Equality Act. Activists also urged communities in other
provinces to organize similar mass wedding ceremonies. Prime Minister Shinawatra invited several same-sex couples to the
Government House to celebrate their marriages, writing on
Instagram: "January 23, 2025 will be the day we all make history together, the love of everyone is legally recognised with honour and dignity." According to the
Ministry of Interior, more than 1,754 same-sex couples married on the first day of legalization, with about 650 in Bangkok.
Statistics By January 2026, 26,287 same-sex couples had married in Thailand, accounting for about 10% of all marriages. 24% of same-sex marriages were between male couples, while the remaining 76% were between lesbian couples. == Public opinion ==