George Dempster of Dunnichen and Skibo FRSE FSA (Scot) (1732–1818) was a Scottish advocate, landowner, agricultural improver and politician who sat in the House of Commons between 1761 and 1790.

Dempster founded the bank George Dempster & Co. (also known as the Dundee Banking Company) in 1763, was a Director of the East India Company from 1769, and served as Provost of St Andrews (1780) and a Director of the Highland Society of Scotland (1789).

Dempster, nicknamed Honest George,[1] was a key figure of the Scottish Enlightenment and respected as an "independently minded, incorruptible and moderately radical MP".

In 1762 he joined the Poker Club of Edinburgh, and may have been a co-founder of this influential body, He, Andrew Erskine, and James Boswell were joint authors and a "triumvirate of wit", although he later regretted at least one of their attacks, the Critical Strictures on the New Tragedy of Elvira, as he believed the tragedy was better than anything he or his co-authors could have done.

[2] Dempster was elected a Fellow of the Royal Society of Edinburgh in 1788, upon the proposal of Dr Thomas Anderson, Henry Duncan and John Playfair.