General Sir John Noel Thomas KCB DSO MC (28 February 1915 – 16 March 1983) was a Master-General of the Ordnance.

[1] He served in World War II latterly as Commander Royal Engineers for the Guards Armoured Division in North West Europe.

[1] He was appointed General Officer Commanding 42nd (Lancashire) Division/District of the Territorial Army in 1963 and then became Director of Combat Development (Army) at the Ministry of Defence in 1965.

[1] He was appointed Deputy Chief of the Defence Staff (Operational Requirements) in 1968 and Master-General of the Ordnance in 1971; in this capacity he was also a member of the Procurement Executive Organisation formed by Prime Minister Edward Heath that year.

[1] He also served as Colonel of the Royal Pioneer Corps from 1968 to 1976.