Sir William Philip Colfox, 1st Baronet, MC, DL, JP (25 February 1888 – 8 November 1966) was an English soldier, farmer and Conservative Party politician.

He served as a Major in France and Belgium in 128, 130, 129, G/38, 6DAC and D/162 RFA during World War I, and was wounded twice in 1917, receiving a Military Cross.

At the 1929 election, his majority was 4,326; in 1931, 5,239; and in 1935 it reduced to 2,090 following disparaging remarks made about his opponent Mr Chapel, a Welsh Methodist minister.

Refusing lesser honours, Colfox accepted a baronetcy in 1939[7] from his cousin Neville Chamberlain, speaking in the debate following the latter's resignation in support of the outgoing Prime Minister.

Six hundred years after Sir Nicholas Colfox (on the instructions of Richard II and his feudal lord, the Duke of Norfolk) was involved in the murder of the King's uncle, Thomas of Woodstock, Duke of Gloucester (1397),[9] Sir Philip had returned Colfoxs to the national scene.

[14] They had 2 sons and 2 daughters: Thomas Andrew (1922–1936), (William) John (2nd Bart) (1924–2014), Susan Frances (1929–), and Bridget Alice (1931–2016).

On one occasion Sir Philip, Lady Colfox (and her brother, Jack Bullen) heard a misdemeanour offence against the couple's son charged by the police for the road traffic offence of leaving mud on a public road - which he freely admitted.