Charles Smith Olden (February 19, 1799 – April 7, 1876) was an American merchant, banker, and politician who served as the 19th governor of New Jersey from 1860 to 1863 during the first part of the American Civil War. As Governor, Olden supported President Abraham Lincoln and the national war effort but favored union and reconciliation with the South above all else; before the war, he argued slavery was properly understood as the sole regulatory province of the states, and he later opposed Lincoln's Emancipation Proclamation.