Michael of Synnada was an 8th-century metropolitan bishop and diplomat from Phrygia who served the Byzantine Empire. Influenced by Patriarch Tarasios, he rose to his ecclesiastical position and participated in the Second Council of Nicaea. He played a significant role in international relations, acting as an envoy to both Charlemagne and the Abbasid caliph Harun al-Rashid to negotiate peace treaties. Due to his opposition to iconoclasm under Emperor Leo V, he was eventually exiled, where he died in 826.