Kay Deslys (28 September 1899 - 15 August 1974) was a British comedy actress in American films from the 1920s.
Born as Kathleen Herbert in London, one of her earliest roles was in Charlie Chaplin's celebrated feature The Gold Rush; she later appeared in several comedies at the Hal Roach Studios, including several early Laurel and Hardy comedies. During the 1930s and 1940s, she played mainly bit and extra roles in feature films before retiring in the early 1950s.