William Henry Ashley (1778-26 March 1838) was a member of the US House of Representatives (D-MO AL) from 31 October 1831 to 3 March 1837, succeeding Spencer D. Pettis and preceding John Miller. Born in Powhatan County, Virginia, he settled in Ste. Genevieve, Missouri and later in St. Louis. He served as a brigadier-general during the War of 1812, as Lieutenant Governor of Missouri from 1820 to 1824, as a fur trader (Hugh Glass' bear attack occurred during one of his expeditions), and in Congress.