Theophilus adalah Paus Aleksandria dan Patriarkh Tahta Santo Markus ke-23. Ia menjadi Paus pada masa konflik antara umat Kristen yang baru menjadi dominan dan pihak pagan di Aleksandria.
Russell, N., Theophilus of Alexandria (London, Routledge, 2006) (The Early Church Fathers).
Polański, T., "The Three Young Men in the Furnace and the Art of Ecphrasis in the Coptic Sermon by Theophilus of Alexandria," Studies in Ancient Art and Civilisation, 10 (2007), 79–100.