Mary and Matthew Darly were English printsellers and caricaturists during the 1770s. Mary Darly (fl. 1756–1779) was a printseller, caricaturist, artist, engraver, writer, and teacher. She wrote, illustrated, and published the first book on caricature drawing, A Book of Caricaturas [sic] (c. 1762), aimed at "young gentlemen and ladies." Mary was the wife of Matthew Darly, also called Matthias (fl. 1741–1778), a London printseller, furniture designer, and engraver. Mary was evidently the second wife of Matthew; his first was named Elizabeth Harold.