Daniel D. Tompkins, American lawyer and politician, 6th Vice President of the United States (d. 1825)
Daniel D. Tompkins (June 21, 1774 – June 11, 1825) was an American politician. He was the fourth governor of New York from 1807 to 1817, and the sixth vice president of the United States from 1817 to 1825.

Born in Scarsdale, New York, Tompkins practiced law in New York City after graduating from Columbia College. He was a delegate to the 1801 New York constitutional convention and served on the New York Supreme Court from 1804 to 1807. In 1807, he defeated incumbent Morgan Lewis to become the Governor of New York. He held that office from 1807 to 1817, serving for the duration of the War of 1812. During the war, he often spent his own money to equip and pay the militia when the legislature was not in session, or would not approve the necessary funds.

Tompkins was the Democratic-Republican Party's vice presidential nominee in the 1816 presidential election. The ticket of James Monroe and Tompkins easily prevailed over limited Federalist opposition. He served as vice president from 1817 to 1825, and was the only 19th century vice president to serve two full terms. In 1820, he sought another term as Governor of New York, but was defeated by DeWitt Clinton. After the War of 1812, Tompkins was in poor physical and financial health, the latter condition stemming largely from his spending for the military effort during the War of 1812. He fell into alcoholism and was unable to re-establish fiscal solvency despite winning partial reimbursement from the federal government in 1823. He died in June 1825, soon after leaving office.