Satyrus of Arezzo was an early Christian leader who served as the first bishop of Arezzo around 304 AD. As a presbyter and later a bishop, he played a foundational role in establishing the ecclesiastical structure of his region. He is distinguished from other historical figures of the same name, such as the brother of Saint Ambrose. His leadership marked the beginning of the bishopric in Arezzo, which was later succeeded by Saint Donatus.