Katherine or Katharine Cook may refer to:
Katharine Cook (1863–1938), British medical missionary in Uganda Katharine Cook Briggs (1875–1968), née Cook, co-creator, with her daughter Isabel Briggs Myers, of an inventory of personality type known as the Myers–Briggs Type Indicator Katherine M. Cook (1876–1962), American educator and government official
See also Catherine Cooke (disambiguation) Kate Cook (disambiguation)