Ozolian Locris or Esperian Locris was a region in Ancient Greece, inhabited by the Ozolian Locrians (Greek: Ὀζολοὶ Λοκροί; Latin: Locri Ozoli) a tribe of the Locrians, upon the Corinthian gulf, bounded on the north by Doris, on the east by Phocis, and on the west by Aetolia.
Various etymologies were proposed by the ancients about the origin of the name of the regions inhabitants, the Ozolai (Ὀζόλαι). Some derived it from the Greek verb ὄζειν (ozein) which means "to smell". According to Strabo, this version could be explained by the stench arising from a spring at the foot of Mount Taphiassus, beneath which Nessus and other centaurs had been buried, while according to Plutarch, that was due to the asphodel which scented the air. For the first of these two versions, Pausanias said that, as he had heard, Nessus, ferrying on Evenus, was wounded by Heracles but not killed on the spot, making him escape to this country and when he died, his body rotted unburied, imparting a stench to the atmosphere of the place. Other variations about the origin of the name from the above verb that Pausanias included in his work Description of Greece are: a) that the exhalations of a river had a peculiar smell and b) that the first dwellers of the region did not know how to weave garments so they wore untanned skins which were smelly.
Another version mentioned by Pausanias was that Orestheus, son of Deucalion, king of the land, had a bitch which gave birth to a stick instead of a puppy and Orestheus buried it from which a vine grew in the spring, and from its branches called ὄζοι (ozoi) in Greek, the people got their name.