Randolph Caldecott was a British artist and illustrator, born in Chester. The Caldecott Medal was named in his honour. He exercised his art chiefly in book illustrations. His abilities as an artist were promptly and generously recognised by the Royal Academy. Caldecott greatly influenced illustration of children's books during the nineteenth century. Two books illustrated by him, priced at a shilling each, were published every Christmas for eight years.

The Randolph Caldecott Medal, frequently shortened to just the Caldecott, annually recognizes the preceding year's "most distinguished American picture book for children". It is awarded to the illustrator by the Association for Library Service to Children (ALSC), a division of the American Library Association (ALA). The Caldecott and Newbery Medals are considered the most prestigious American children's book awards. Beside the Caldecott Medal, the committee awards a variable number of citations to runners-up they deem worthy, called the Caldecott Honor or Caldecott Honor Books.