Sir John Tusa (born 2 March 1936) is a British arts administrator, and radio and television journalist. From 1980 to 1986 he was a main presenter of BBC 2's Newsnight programme. From 1986 to 1993 he was managing director of the BBC World Service. From 1995 to 2007 he was managing director of the City of London's Barbican Arts Centre.
He was awarded the Knight Bachelor of the Order of the British Empire in the 2003 Queen's Birthday Honours List for his services to the Arts. He was managing director of the Barbican Centre in London, England.