Sir George Clerk Maxwell, 4th Baronet FRSE (1715–1784), of Penicuik (simply Clerk prior to his marriage), was a Scottish landowner who served as the Lord Treasurer's Remembrancer in Exchequer (1741), Commissioner of Customs (1763), a Trustee for Improving Fisheries and Manufactures in Scotland, and as a Commissioner for the Annexed Forfeited Estates.