Keith Paul Hightower (born January 14, 1957) is an American businessman who was from 1998 to 2006 a Democratic mayor of Shreveport, Louisiana.Hightower graduated in 1975 from Captain Shreve High School; one of his classmates was later State Senator Greg Barro, a Shreveport lawyer. Hightower then graduated in 1979 from Louisiana Tech University in Ruston, the seat of Lincoln Parish.