LGBT Humanists UK, founded in 1979, is a special interest section of the British Humanist Association (BHA) which campaigns for lesbian, gay, bisexual and transgender (LGBT) equality and human rights in the United Kingdom. It also organises social events for LGBT humanists and public awareness initiatives around Humanism. Originally founded as a distinct humanist organisation, the Gay Humanist Group, later the Gay and Lesbian Humanist Association (GALHA), it became a part of the BHA in 2012, and took on the name Galha LGBT Humanists before becoming LGBT Humanists UK in 2015.
In common with humanist associations around the world, the LGBT Humanists' logo has always contained a version of the Happy Human. For many years, its President was the poet Maureen Duffy, who became a Patron of the BHA when the organisations merged. As GALHA, the group was independently affiliated with the International Humanist and Ethical Union (IHEU) and the NGO Amnesty International. The group is led by volunteers and its current Chair is Richard Unwin. Past chairs include Andrew Copson, the chief executive of the BHA, who is also President of IHEU.