Patrick van Rensburg (3 December 1931 − 23 May 2017) was a South African educationalist and anti-apartheid activist. He founded the Brigades Movement in Botswana, and the Foundation for Education with Production which is active in South Africa, Botswana and Zimbabwe.
Van Rensburg was born in Durban, South Africa. His parents separated when he was young, and he was raised by his Afrikaner grandmother and her French Mauritian husband. The family spoke English at home and were Roman Catholic: a big difference from the traditional Afrikaner upbringing. Van Rensburg attended St. Henry's Marist Brothers' College and Glenwood High School. He had three children: sons Mothusi and Thomas van Rensburg and daughter Joanna Forbes.
Van Rensburg was South African Vice-Consul in the Belgian Congo (now Democratic Republic of Congo) from February 1956 till May 1957, when he resigned as a protest against South Africa's apartheid policies of racial discrimination. He joined the Liberal Party of South Africa, becoming the party's organising secretary for the Transvaal province in September 1958.
In 1959 he moved to the UK, where he almost immediately began helping organise the 1960 campaign to boycott South African goods in the UK and the Netherlands. Other organisers and supporters of the campaign included Julius Nyerere, Trevor Huddleston, Canon John Collins and Tennyson Makiwane. The Boycott Movement soon grew into the British Anti-Apartheid Movement.