Alston was educated at Ardingly College and New College, Oxford. He is Chairman of Governors at Ardingly College. He served as British Ambassador to Oman between (1986–1990), and as British High Commissioner to New Zealand and the Cook Islands, non-resident High Commissioner to Samoa, and Governor of the Pitcairn Islands between (1994–1998).
- Companion of the Order of St Michael and St George (CMG) - 1987
- "Robert Alston - Former South Pacific High Commissioner". Retrieved 2008-06-06.
|British Ambassador to Oman
Sir Terence Clark
|British High Commissioner to New Zealand