Mark E. Souder (born July 18, 1950) is an American politician who is serving his fifth term as a member of the United States House of Representatives from Indiana's Third Congressional District (map). The Third District lies in northeast and northcentral Indiana and includes all of DeKalb, Kosciusko, LaGrange, Noble, Steuben and Whitley counties as well as major portions of Allen and Elkhart counties. Souder was born in Fort Wayne, Indiana and attended Leo High School, IPFW and the University of Notre Dame.