Giovanni Demetrio Angeli (Latin: Joannes Demetrius Angelus, Albanian: Gjon Dhimitër Engjëlli; 1499–1571) was an early member of the Albanian-Italian Angelo Flavio Comneno family, which claimed descent from the Angelos dynasty of Byzantine emperors. His later relatives attributed him various titles, such as "Prince of Achaea and Macedonia" and "Prince of Cilicia".