Katherine Williams

Katherine, Katharine, Kathryn or Kathy Williams may refer to:


 * Katharine Isabella Williams (1848–1917), British chemist
 * Kath Williams (1895–1975), Australian women's activist
 * Katharine Williams, Australian judge
 * Kathryn Williams (born 1974), English singer-songwriter
 * Kathy Williams, a character in The Fog