George Spencer-Churchill, 5th Duke of Marlborough

His Grace

The Duke of Marlborough

FSA
His Grace; The Duke of Marlborough; FSA
Predecessor	George Spencer
Successor	George Spencer-Churchill
Born	6 March 1766
Died	5 March 1840 (aged 73); Blenheim Palace, ; Woodstock, Oxfordshire; United Kingdom
Nationality	British
Spouse(s)	Lady Susan Stewart
Issue	George Spencer-Churchill, 6th Duke of Marlborough; Lord Charles Spencer-Churchill; Lord George Henry Spencer-Churchill; Lord Henry John Spencer-Churchill;
Father	George Spencer, 4th Duke of Marlborough
Mother	Lady Caroline Russell

George Spencer-Churchill, 5th Duke of Marlborough FSA (6 March 1766 – 5 March 1840), styled Marquess of Blandford until 1817, was a British nobleman, politician, peer, and collector of antiquities and books.

He was the first one to specifically use the surname "Spencer-Churchill"; Churchill was the name of the first Duke.