Burke Frederick St John Trend, Baron Trend, GCB, CVO, PC (2 January 1914 – 21 July 1987) was a British civil servant and later Rector of Lincoln College, Oxford.
Trend was educated at Whitgift School and Merton College, Oxford, where he took first class honours in Classics. He then joined the Civil Service, spending most of his career in the Treasury. He became Cabinet Secretary under both Harold Wilson and Ted Heath between 1963 and 1973.
Trend was appointed a Commander of the Royal Victorian Order (CVO) in the 1953 Birthday Honours. He was appointed a Companion of the Order of the Bath (CB) in the 1955 New Year Honours, promoted to Knight Commander (KCB) in the 1962 Birthday Honours and a Knight Grand Cross in the 1968 New Year Honours. On 7 March 1974 he was created a life peer as Baron Trend, of Greenwich in Greater London.