George Knapton (1698–1778) was an English portrait painter and the first portraitist for the Society of Dilettanti in the 1740s.
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As well as contributing to many of the British Museum departmental catalogues, he wrote for the art journals and also published a number of monographs: 'The Collection of J Pierpont Morgan' (1913), 'The Art Treasures of the Nation' (1929), and 'The Society of the Dilettanti: it's Regalia and Pictures' (1932).
He made illustrations for a number of large companies - BP, Shell, Whitbread - and undertook portraits of royalty, cabinet ministers, city businessmen, and celebrities - Joyce Grenfell, Sir Michael Adeane, Sir Roger Bannister, Lord Denning, Norman Parkinson and Sir Arthur Norrington - and for members of the Society of Dilettanti and of Annabel's.