Lesbian, gay, bisexual, and transgender (LGBT) persons in Massachusetts have the same rights and responsibilities as cisgender heterosexuals. The U.S. state of Massachusetts is one of the most LGBT-friendly states in the country. In 2004, it became the first U.S. state to grant marriage licenses to same-sex couples after the decision in Goodridge v. Department of Public Health, and the sixth jurisdiction worldwide, after the Netherlands, Belgium, Ontario, British Columbia, and Quebec.
Massachusetts is regarded as one of the most advanced U.S. states in regards to LGBT rights legislation. Same-sex sexual activity has been legal since 1974. State law bans discrimination on the basis of sexual orientation and gender identity in employment, housing, public accommodations, credit and union practices. In November 2018, it became the first state in the country to support transgender protections through popular vote. In addition, same-sex couples are allowed to adopt, and transgender people may change their legal gender without undergoing sex reassignment surgery. In April 2019, Massachusetts became the 16th US state to ban conversion therapy on LGBT minors.
Massachusetts is home to a vibrant and visible LGBT culture. Boston, the state capital, has been ranked one of the most LGBT-friendly cities in the United States, noted for its LGBT dating scene, events, nightlife, clubs and bars. Several towns located at the tip of Cape Cod are also famous internationally for their high LGBT acceptance and visibility, particularly Provincetown. Northampton, on the other hand, is the town with the most lesbian couples per capita in the entire United States.