Sir Arthur Wendell Snelling KCMG KCVO (7 May 1914 – 25 June 1996) was a senior British civil servant and diplomat.
Snelling was Deputy High Commissioner for the UK in New Zealand, 1947–1950, and the Union of South Africa, May 1953–January 1956.
He was Assistant Under-Secretary of State at the Commonwealth Relations Office, 1956–1959, and British High Commissioner in Ghana, 1959–1961.
Snelling was Deputy Under-Secretary of State at the Foreign and Commonwealth Office, 1961–1969, and Ambassador to the Republic of South Africa, 1970–1973.
He had suffered from, and been treated for, lung cancer but died of emphysema on 25 June 1996 at his home in Kingston upon Thames.