Kate Williams

• Kate Williams (historian), British author, historian and TV presenter
• Kate Williams (actress), English actress
• Kate Williams, Welsh strongwoman with stage name Vulcana
• Kate Williams (pianist), jazz pianist and daughter of guitarist John Williams
• Kate Williams (chef), chef and restaurateur in Detroit, Michigan
• Kate Williams (rugby union), Welsh international rugby union player
• Kate Williams (judge), judge of the Supreme Court of New South Wales