Catherine Greenaway (17 March 1846 – 6 November 1901) was an English Victorian artist and writer, known for her children's book illustrations. She received her education in graphic design and art between 1858 and 1871 from South Kensington School of Art and the Royal Female School of Art, and the Slade School of Fine Art. She began her career designing for the burgeoning holiday card market, producing Christmas and Valentine's cards. In 1879 wood-block engraver and printer, Edmund Evans, printed Under the Window, an instant best-seller, which established her reputation. Her collaboration with Evans continued throughout the 1880s and 1890s.

The depictions of children in imaginary 18th-century costumes in a Queen Anne style were extremely popular in England and internationally, sparking the Kate Greenaway style. Within a few years of the publication of Under the Window Greenaway's work was imitated in England, Germany and the United States.