In Greek mythology, Odius (Ancient Greek: Ὀδίος or Ὀδίον) may refer to the following personages:
- Odius, leader of the Alizonians from Alybe (Chalybes[1] or Alope[2]) together with his brother Epistrophus.[3] They were children of Mecisteus. Agamemnon thrust Odius from his chariot and killed him with a spear which was fixed in his back between the shoulders. The lance was driven through his breast by the Mycenaean king causing Odius to fell with a thud and his armour clanged.[4]
- Odius, a herald who attended those who tried to persuade Achilles to start fighting again.[5]