John Henninger Reagan (October 8, 1818 - March 6, 1905), was a leading 19th-century American politician from the U.S. state of Texas. A Democrat, Reagan left the U.S. House of Representatives when his state seceded from the Union to join the Confederate States of America. During the American Civil War, he served in the cabinet of Jefferson Davis as Postmaster-General. After the Confederate defeat, he called for cooperation with the federal government and became unpopular, but returned to public office when his predictions of harsh treatment for resistance were proved correct.
He has no known relation to Ronald Reagan.