Lieutenant-Colonel Sir (William) Philip Colfox, 1st Baronet MC JP (25 February 1888 – 8 November 1966) was an English soldier, farmer and Conservative Party politician. Colfox was the son of Colonel Thomas Alfred Colfox of Coneygar Bridport and Constance daughter of Edward John Nettlefold of Hallfield, Birmingham. Born in Bridport, Dorset, he was educated at Eton College and at Woolwich. He served as a Major in the Royal Field Artillery during World War I, and was wounded twice in 1917, receiving a Military Cross. He then taught classics and mathematics at Eton for the rest of World War I.