James Maitland, 8th Earl of Lauderdale (1759-1839), was a British politician and writer.

He was a member of parliament from 1780 until 1789 when he succeeded his father in the earldom. In the House of Commons he took an active part in debate, and in the House of Lords, where he was a representative peer for Scotland, he was prominent as an opponent of the policy of Pitt and the English government with regard to France, a country he had visited in 1792, in the company of John Moore. In 1806 he was made a peer of the United Kingdom as Baron Lauderdale of Thirlestane and for a short time he was keeper of the Great Seal of Scotland. By this time the earl, who had helped to found the Society of the Friends of the People in 1792, had somewhat modified his political views; this process was continued, and after acting as the leader of the Whigs in Scotland, Lauderdale became a Tory and voted against the Reform Bill of 1832.

He wrote an Inquiry into the Nature and Origin of Public Wealth (1804 and 1819), a work which has been translated into French and Italian and which produced a controversy between the author and Lord Brougham; The Depreciation of the Paper-currency of Great Britain Proved (1812); and other writings of a similar nature.