Judge Kay may refer to:
Alan Kay (judge) (fl. 1950s–2020s), magistrate judge of the United States District Court for the District of Columbia Alan Cooke Kay (born 1932), judge of the United States District Court for the District of Hawaii Joseph Kay (economist) (1821–1878), judge on the Northern Circuit of England and Wales Maurice Kay (born 1942), judge of the Court of Appeal of England and Wales
See also David Gregory Kays (born 1962), judge of the United States District Court for the Western District of Missouri Lord Justice Kay (disambiguation)