Major-General David Boyd Alexander-Sinclair, (2 May 1927 – 7 February 2014) was a British Army officer who commanded the 1st Division from 1975 to 1977.

Military career Educated at Eton College,Debrett's People of Today Alexander-Sinclair was commissioned into the Rifle Brigade (The Prince Consort's Own) in 1946.Liddell Hart Centre for Military Archives In 1967 he was given command of 3rd Bn Royal Green Jackets. He was appointed commander of the 6th Armoured Brigade in 1971, General Officer Commanding 1st Division in 1975,Army Commands and chief of staff at UK Land Forces in 1978. His last role was as Commandant of the Staff College, Camberley, in 1980 before he retired in 1982. He died on 7 February 2014.Peerage News

Family In 1958 Alexander-Sinclair married Ann Ruth Daglish; they had two sons and one daughter.

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