Sir John Margetson, KCMG (born 9 October 1927) is a former British Ambassador to Vietnam, the United Nations, and the Netherlands.
John William Denys Margetson was born 9 October 1927 and is the younger son of the late Very Rev W.J.Margetson and Marion Jenoure. He was educated at Blundell's School and St John's College, Cambridge. From 1947- 49 Margetson served his National Service with the Life Guards regiment of the Household Cavalry.
Following his period of National Service Margetson joined the Colonial Service and later the Diplomatic Service where he was speech writer to the Foreign Secretary, George Brown.
Margetson’s later career included appointments as British Ambassador to Vietnam (1978–80), the United Nations, and the Netherlands (1984–88). He was appointed CMG in 1979 and KCMG in 1986.
Following his retirement from the Foreign Office Margetson served as Gentleman Usher of the Blue Rod from 24 July 1992 – 25 October 2002.
| Court offices | ||
|---|---|---|
| Preceded by Sir John Moreton |
Gentleman Usher of the Blue Rod 1992–2002 |
Succeeded by Sir Anthony Figgis |