The Civil and Commercial Code Amendment Act (No 24), 2567 BE, commonly referred to as the Marriage Equality Act (Thai: พระราชบัญญัติสมรสเท่าเทียม, RTGS: phraratchabanyat somrot thaothiam), is a 2024 Thai law legalizing same-sex marriage in Thailand.

[6] Following publication, the law would come into effect in 120 days on 22 or 23 January 2025, pending interpretation from the Council of State.

[11] Foreign couples can also register their marriages irrespective of gender, but must provide proof they are not already married.

[9] A 2025 study commissioned by travel company Agoda projected that the Marriage Equality Act will create 152,000 full-time jobs and increase Thailand's GDP by 0.3%.

[15] The law is projected to attract an additional 4 million tourists annually and generate approximately $2 billion in revenue.