Aunt Jane's Nieces in Society is a young-adult novel written by L. Frank Baum, famous as the creator of the Land of Oz. First published in 1910, the book is the fifth volume in the Aunt Jane's Nieces series, which was the second-greatest success of Baum's literary career, after the Oz books themselves. The novel carries forward the continuing story of the three cousins, Louise Merrick, Beth De Graf, and Patsy Doyle, and their relatives and friends. Like the other books in the series, it was released under the pen name "Edith Van Dyne," one of Baum's multiple pseudonyms.