Peter McKenzie Brown (1924–2004) was a founding member of the Liberal Party of South Africa and succeeded Alan Paton as its national chairman in 1958.
Brown was arrested in March 1960, 10 days after the Sharpeville massacre and was released without charge after 98 days in prison.
Brown was born on 24 December 1924 into a well-known Durban family with a shipping fortune. He attended Michaelhouse and was head boy. He fought in North Africa and Italy during World War II. He later studied agriculture at the University of Cambridge and African languages and Native Law and Administration at the University of Cape Town.
He lived in Pietermaritzburg.