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

• Catharine R. Williams (1787–1872), American writer and suffragist
• Catherine G. Williams (1914–2020), American social worker
• Kathryn Harby-Williams (born 1969), Australian netball player and television presenter
• Katherine Dienes (born 1970), also known as Katherine Dienes-Williams, a New Zealand-born organist and conductor

• Katie Williams (disambiguation)
• Kate Williams (disambiguation)
• Williams (surname)

Topics referred to by the same term

This disambiguation page lists articles about people with the same name.
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