Gisela is an unincorporated community and census-designated place in Gila County, Arizona, United States. The population was 570 at the 2010 census. Gisela was named after the heroine in the book Countess Gisela by E. Marlitt. The town schoolteacher was reading the book to her students when she was asked by her husband, the postmaster, to help name the little settlement. She asked the school children what names they liked, and they voted to name their new town Gisela.