Tryphiodorus (Ancient Greek: Τρυφιόδωρος, romanized: Tryphiodoros; fl. 3rd or 4th century AD) was an epic poet from Panopolis (today Akhmim), Egypt. His only surviving work is The Sack of Troy, an epic poem in 691 verses. Other recorded titles include Marathoniaca and The Story of Hippodamea.
During his lifetime he was known as Triphiodorus (Τριφιόδωρος, Triphiodoros, 'gift of Triphis' [a local god of Akhim]). The confusion between the two spellings occurred already in the sixth century AD due to the widespread confusion of the pronunciation of i/y. A false etymology claims spelling "Tryphiodorus" is based on the Greek word "truphē," meaning "luxury" or "extravagance".