Sir Geoffrey James Warnock (16 August 1923 – 8 October 1995)[1] was an English philosopher and Vice-Chancellor of Oxford University.

Warnock was born at Neville House, Chapel Allerton, Leeds, West Yorkshire, to James Warnock (1880–1953), OBE, a general practitioner from Northern Ireland who had been a Captain in the Royal Army Medical Corps,[3] and Kathleen (née Hall; 1890–1979).

The Warnocks later lived at Grade II-listed[4] Pull Croft, Sutton Courtenay, Oxfordshire (historically Berkshire).

[1] He then served with the Irish Guards until 1945, before entering New College, Oxford, with a deferred classics scholarship.

In 1970, he was elected to Principal of Hertford College, Oxford (1971–1988), where there is now a society and student house named after him.