Sir John Shaw Rennie GCMG OBE (12 January 1917 – 12 August 2002)[1] was a British civil servant.

He was Commissioner-General for United Nations Relief and Works Agency for Palestine Refugees in the Near East from 1971 to 1977.

In 1951 Rennie was appointed Britain's deputy colonial secretary for Mauritius.

[4] From 1962 to 1968, he was Governor of Mauritius, overseeing Mauritius's transition to independence, including initiating discussions with Seewoosagur Ramgoolam, the Mauritian premier, over the detachment of the Chagos Islands from Mauritian territory.

[6] Rennie married Winifred McAlpine Robertson on 26 February 1946.