Catherine Douglas was a historical figure who tried to prevent the assassination of King James I of Scotland.

Catherine Douglas may also refer to: Catherine Douglas, Baroness Glenbervie (1760–1817) Catherine Douglas, Duchess of Queensberry (1701–1777), English socialite Catherine Zeta-Jones (born 1969), wife of Michael Douglas Kathy Douglas, American model Katherine Douglas Smith (1878–?), militant British suffragette Katherine Douglas (rower), 2020 British Olympian Katharine Waldo Douglas (1870–1939), American novelist and translator

See also Kate Douglas (disambiguation) Katie Douglas (disambiguation)