Annie Jessy Curwen (c. 1845 – 22 April 1932), born Annie Jessy Gregg, usually known from her books as Mrs. Curwen or Mrs. J. Spencer Curwen, was a writer children's books and books for music teachers, on music theory and performance, and particularly piano playing, which were published by J. Curwen & Sons Ltd. of London in the late 19th century.[1]