This article is about the English politician. For the England cricketer of the same name, see Robert Key (cricketer).

Robert Simon Key (born 22 April 1945) is a Conservative politician in the United Kingdom.

He is member of Parliament for Salisbury, and has been an MP since 1983. He served as a front-bench member of the Shadow Cabinet during the leaderships of William Hague and Iain Duncan Smith but is now a backbencher.

He is the son of John Maurice Key who was the 10th Bishop of Truro.