Isabelle Keith (May 27, 1898, New York City – July 20, 1979, Mill Valley, California) was an American actress. She appeared in 42 films between 1919 and 1936, most of them from the M-G-M studio, and on two occasions with Laurel and Hardy.
She was sometimes credited as Claudelle Kaye, Elizabeth Keith, Isabelle Keep and Isobel Keep.
Keith, as Claudelle Kaye, played William Powell's secretary in Manhattan Melodrama, the picture John Dillinger watched in Chicago's Biograph Theater just before walking out into the FBI's fatal ambuscade in July, 1934.