Peter Gary Tatchell (born 25 January 1952) is a British human rights campaigner, originally from Australia, best known for his work with LGBT social movements.

The Peter Tatchell Foundation (PTF) is an non-profit, nonpartisan organisation based in the United Kingdom and named after its director, human rights activist Peter Tatchell. It "seeks to promote and protect the human rights of individuals, communities and nations, in the UK and internationally, in accordance with established national and international human rights law " and its stated aims and objectives are "to raise awareness, understanding, protection and implementation of human rights, in the UK and worldwide".

Peter may refer to: