Lesbian, gay, bisexual, and transgender (LGBT) persons in the U.S. state of Oklahoma may face some legal challenges not experienced by non-LGBT residents. Same-sex sexual activity is legal in Oklahoma, and both same-sex marriage and adoption by same-sex couples have been permitted since October 2014. State statutes do not prohibit discrimination based on sexual orientation or gender identity; however, the U.S. Supreme Court's ruling in Bostock v. Clayton County established that employment discrimination against LGBT people is illegal. This practice may still continue, as Oklahoma is an at-will employment state and it is still legal to fire an employee without requiring the employer to disclose any reason.
