Demetrios of Tarsus

Demetrius of Tarsus (, ) was a Greek grammarian known only from Plutarch's work De Oraculorum Defectu (περὶ τῶν ἐκλελοιπότων χρηστηρίων). He is Demetrios 107 in Pauly's Encyclopedia. He is thought to have made a voyage to the British Isles around the 1st century AD. Two bronze dedication plaques by a Demetrios written in ancient Greek have been found in Roman contexts from York: RIB 662 and 663.

His life is dated by him arriving at Delphi a short time before the Pythian Games in A.D. 83–84.

Voyage to Britain The sole reference to Demetrius' voyage in classical literature is passim Plutarch's On the Obsolescence of Oracles (De Oraculorum Defectu, chapter 18); his voyage to Britain is thought to have occurred at some point around the 1st century AD. He is said to have been commissioned by an unknown king/emperor to undertake the voyage. Two bronze dedication plaques by a Demetrios written in ancient Greek have been found in Roman contexts from York: RIB 662 and 663. They state "To the gods of the legate’s residence Scribonius Demetrius (set this up)" and "To Ocean and Tethys Demetrius (set this up)." respectively. The latter's association with the Ocean has led to their association with Demetrios of Tarsus' voyage.