Catherine Douglas (disambiguation)

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