Lewis Williams

Lewis Williams may refer to:
 * Lewis Williams (politician) (1782–1842), American politician
 * Lewis Williams (boxer), English boxer
 * Lewy Williams (Lewis Williams, born 2002), Welsh darts player
 * Lewis Williams (rugby union) (born 1987), Welsh rugby union player
 * Lewis B. Williams Jr. (1833–1863), Confederate officer during the American Civil War
 * Lewis A. Williams (1852-1935), Chicago saloonkeeper and co-creator of Cohasset Punch