Joan Canning, 1st Viscountess Canning

Joan Canning, 1st Viscountess Canning (née Scott; 1776 – 14 March 1837) was the wife of British Prime Minister George Canning.

She was born in Scotland, the daughter of Major-General John Scott and Margaret Dundas. She was also a sister of the Duchess of Portland and the Countess of Moray.

On 8 July 1800, she married George Canning in St George's, Hanover Square on Hanover Square, London, with John Hookham Frere and William Pitt the Younger as witnesses. They had four children:

Joan was created 1st Viscountess Canning of Kilbraham on 22 January 1828 (almost 6 months after her husband had died), with a special remainder to the male heirs of her late husband.