General Sir John Freeguard Deverell KCB OBE DL FRSA (born 27 April 1945) is a British Army officer who was Commander-in-Chief Allied Forces Northern Europe from 2001 to 2004.

[2] Educated at King Edward's School, Bath and the Royal Military Academy Sandhurst, Deverell was commissioned into the Somerset and Cornwall Light Infantry in 1966.

[3] He was selected as commanding officer of 3rd Bn The Light Infantry in 1984, serving in the UK including in Northern Ireland, before moving on to be Director of Staff at Royal Military College of Science in 1986.

[4] His final appointment was as Commander-in-Chief Allied Forces Northern Europe in 2001; he retired in 2004.

[4] In 1973, he married Jane Ellen Solomon: they have one son and one daughter.