Andrew Upson (May 18, 1825 – February 18, 1864) was an American politician and American Civil War officer. He was son of Levi Upson, born in Southington, Connecticut, May 18, 1825 He graduated from Yale College in 1849. After two years employed in teaching at Salem, New Jersey, and Wellsboro, Pennsylvania, he returned to his native place, and resided there, engaged in agriculture. He was a member of the General Assembly of Connecticut in 1854. He married Miss Elizabeth Gridley, of Southington, Connecticut, who, with three children, survived him.