Claud Stephen Phillimore, 4th Baron Phillimore (15 January 1911 – 29 March 1994) was an English architect specialising in larger country houses who, succeeded to his family's title in 1990. He was educated at Trinity College, Cambridge, where he was a member of the University Pitt Club. He was married to Anne Elizabeth Dorrien-Smith (b.1911), daughter of Major Arthur Dorrien-Smith. Their son Francis Stephen Phillimore (b. 1944) succeeded as 5th Baron Phillimore.