Sir Lawrence Dundas was a Scottish businessman and landowner.

He made his first fortune by supplying goods to the British Army during their campaign against the Jacobites and then in Flanders during the Seven Years' War, 1756-1763. He subsequently branched out into banking, property (he developed Grangemouth in 1777) and was a major backer of the Forth and Clyde Canal which happened to run through his Estate at Kerse near Falkirk.

He bought the Aske Estate, near Richmond in North Yorkshire in 1763 from Lord Holderness for £45,000. The Estate included the pocket borough of Richmond and Sir Lawrence was therefore able to appoint the member of Parliament.

Sir Lawrence married Margaret Bruce and they had one son, Thomas Dundas. Sir Lawrence died in 1780 and is buried in the Dundas Mausoleum at Falkirk Old Parish Church where his wife and son eventually joined him.