Oliver Tambo (1917–1993), known as O.R., was a South African anti-apartheid politician and revolutionary.
OR Tambo may also refer to the following things named after him:
O. R. Tambo International Airport, a major airport near Johannesburg OR Tambo District Municipality, a district of Eastern Cape province OR Tambo Cosmos, a soccer club based in Mthatha, Eastern Cape O. R. Tambo Recreation Ground, a park in London
See also Tambo (disambiguation)