Lesbian, gay, bisexual and transgender (LGBT) rights in the United States have increased significantly over time, and are socially liberal relative to most other nations. However, LGBT people in the U.S. may face some legal challenges not experienced by non-LGBT residents. Until 1962, all 50 states criminalized same-sex sexual activity, but by 2003 all remaining laws against same-sex sexual activity had been invalidated. Beginning with Massachusetts in 2004, LGBT Americans had won the right to marry in all 50 states by 2015. Additionally, in many states and municipalities, LGBT Americans are explicitly protected from discrimination in employment, housing, and access to public accommodations. However, in 2022, more than 300 bills have been introduced or passed in 36 states to restrict the rights of LGBT people
Many LGBT rights in the United States have been established by the United States Supreme Court, which has invalidated a state law banning protected class recognition based upon homosexuality, struck down sodomy laws nationwide, struck down Section 3 of the Defense of Marriage Act, made same-sex marriage legal nationwide, and prohibited employment discrimination against gay and transgender employees.