Aunt Jane's Nieces in the Red Cross is a 1915 young adult novel written by L. Frank Baum, famous as the creator of the Land of Oz. It is the tenth and final volume in Baum's Aunt Jane's Nieces series of books for adolescent girls — the second greatest success of his publishing career, after the Oz books themselves. As with all the previous books in the series, Aunt Jane's Nieces in the Red Cross was released under the pen name "Edith Van Dyne," one of Baum's various pseudonyms. The book is noteworthy in Baum's canon for its expression of his views and feelings on World War I.