thumb|Obverse of coin depicting Hebryzelmis Hebryzelmis (Ancient Greek: Εὐρύζελμις, Ἑβρύζελμις, Ἑβροζέλμης, Εὐρύτελμις) was an Odrysian king of Thrace, attested as ruling in 386/385 BC. The origins of Hebryzelmis are unclear, although it has been proposed that he should be identified with the Abrozelmēs recorded as emissary and official interpreter sent by Seuthes II to Xenophon in 401/400 BC.
While the two names are likely to be different Greek renditions of the same Thracian name, and Thracian princes could serve as emissaries, other considerations have led to the identification of Herbyzelmis as a member of a different, senior line of the Odrysian dynasty, and as possible son of Seuthes I and brother of his successor Cotys I.
Possibly supporting this identification is a brief and poorly preserved inscription apparently dating to the 4th century BC, which mentions a certain "Herbyzelmis, (son) of Seuthes, Prianeus," although if the epithet refers to the Ionian city of Priene, the connection would be both surprising and implausible. A major source on his reign is an Athenian decree from 386/385 BC: When Mystichides was archon; Resolved by the boule and the demos; Erechtheis held the prytany, Cheilon of Kephisia was the president, Neon of
Halai was secretary, Euandros proposed: to commend Hebryzelmis the king of the Odrysians, since he is a good man towards the demos of the Athenians, and he himself is to have all the things which his ancestors had. And also to commend [the two names originally here cannot be read] the general and... of Hebryzelmis the king.