Minnie Buckingham Harper (May 15, 1886 – February 10, 1978) was an American politician and housewife. Born in Winfield, West Virginia, Harper was a resident of Keystone when she became in 1928 the first black woman legislator in the United States. She was appointed by Governor Howard M. Gore to the West Virginia House of Delegates to fill the vacancy left by the death of her husband Ebenezer Howard Harper. The McDowell County Republican Executive Committee unanimously recommended that Harper fill her husband's position. She did not seek reelection at the end of her term.