Constance Mary Hart, Baroness Hart of South Lanark,, also known as Dame Judith Hart, was a British Labour Party politician. She served as a Member of Parliament for 28 years, from 1959 to 1987. She served as a government minister during the 1960s and 1970s before entering the House of Lords in 1988.

Aberdeen South is a burgh constituency of the House of Commons of the Parliament of the United Kingdom and it elects one Member of Parliament (MP) by the first-past-the-post system of election.