Major General Frank Keith Simmons, CBE, MVO, MC (21 February 1888 – 22 September 1952)[1] was a senior British Army officer during the Second World War.

Born on 21 February 1888, Simmons was educated at Cranbrook School, Kent, and was, in 1907, commissioned as a second lieutenant into the Highland Light Infantry.

He served in the First World War, on the Western Front, where he awarded the Military Cross and made a Member of the Royal Victorian Order in November 1915.

Among his fellow students there included several future general officers, notably Thomas Hutton, Charles Fullbrook-Leggatt, John Evetts, Gerald Smallwood and Robert Money.

[11] As the situation worsened for the Allies, Simmons was one of a few commanders privy to Percival's last-ditch defence plans[12] and his "no surrender" policy of 11 February 1942.