Sir Philip Robert Aked Mansfield, KCMG (9 May 1926 – 14 May 2003) was a British diplomat.
In 1955, he joined HM Diplomatic Service, and was posted to Addis Ababa, Singapore, Paris, and Buenos Aires.
An Africa specialist, he was Head of the Rhodesia Department of the Foreign and Commonwealth Office from 1969 to 1972.
From 1976 to 1979, he was Assistant Under-Secretary of State, with overall responsibility for African affairs; he was concurrently Commissioner for the British Indian Ocean Territory.
[1] In 1953, Mansfield married Elinor Russell MacHatton, an anthropologist he met in the Sudan; they had two sons.