Thaddeus Betts (February 4, 1789 - April 7, 1840) was a United States Senator from Connecticut. Born in Norwalk, Connecticut, he completed preparatory studies and was graduated from Yale College in 1807. Betts studied law, and was admitted to the bar in 1810 and commenced practice in Norwalk. He was a member of the State house of representatives in 1815 and 1830, and a member of the State senate in 1831. In 1832 and 1836, he was elected lieutenant governor of Connecticut, and was elected as a Whig to the U.S. Senate and served from March 4, 1839, until his death in Washington, D.C. on April 7, 1840. His interment was in Union Cemetery, Norwalk.
This article incorporates facts obtained from the public domain Biographical Directory of the United States Congress.