Major-General Frank Griffiths Caldwell, OBE, MC and bar (26 February 1921 – 22 November 2014) was a British Army officer who became Assistant Chief of the General Staff.

[2] He served in the Middle East, where he was awarded the Military Cross in May 1941[3] and a bar to it in December 1941,[4] and in North West Europe.

[5] He also served in Malaya during the Malayan Emergency in the rank of major.

[6] He was appointed Director of Defence Operational Plans at the Ministry of Defence in 1970[7] and Assistant Chief of the General Staff (Operational Requirements) in 1972 before retiring in 1974.

[9] He married Betty Palmer Buesden; they have a daughter and a son.