John Flournoy Henry (17 January 1793-12 November 1873) was a member of the US House of Representatives (D-KY 12) from 11 December 1826 to 3 March 1827, succeeding Robert Pryor Henry and preceding Chittenden Lyon. Born in Scott County, he served in the War of 1812, as a physician, and as a congressman before moving to Illinois and later to Iowa.