Duke Ernest Gottlob Albert of Mecklenburg (27 August 1742 – 27 January 1814) was a member of the House of Mecklenburg-Strelitz. As a younger son of Duke Charles Louis Frederick of Mecklenburg, Ernest was an elder brother of Queen Charlotte of the United Kingdom, who married King George III in 1761. Ernest followed his sister to England, where he unsuccessfully pursued marriage with the country's largest heiress, Mary Eleanor Bowes.