The Sketch Book of Geoffrey Crayon, Gent., commonly referred to as The Sketch Book, is a collection of 34 essays and short stories written by the American author Washington Irving. It was published serially throughout 1819 and 1820. The collection includes two of Irving's best-known stories, attributed to the fictional Dutch historian Diedrich Knickerbocker: "The Legend of Sleepy Hollow" and "Rip Van Winkle". It also marks Irving's first use of the pseudonym Geoffrey Crayon, which he would continue to employ throughout his literary career.

Washington Irving was an American short-story writer, essayist, biographer, historian, and diplomat of the early 19th century. He wrote the short stories "Rip Van Winkle" (1819) and "The Legend of Sleepy Hollow" (1820), both of which appear in his collection The Sketch Book of Geoffrey Crayon, Gent. His historical works include biographies of Oliver Goldsmith, Muhammad, and George Washington, as well as several histories of 15th-century Spain that deal with subjects such as the Alhambra, Christopher Columbus, and the Moors. Irving served as American ambassador to Spain in the 1840s.