The Abasgoi or Abasgians (Ancient Greek: Αβασγοί, Abasgoi, and Ancient Greek: Ἁβασκοί, Abaskoi; Latin: Abasci, Abasgi;[1] Georgian: აბაზგები, Abazgebi; compare Abkhaz Абазақәа [aˈbazaː] "the Abaza people") were one of the ancient tribes inhabiting western region of Abkhazia, who originally inhabited lands north of Apsilae, corresponding to today's Ochamchire District.

In 550, during the Lazic War, the Abasgians revolted against the Eastern Roman (Byzantine) Empire and called upon Sasanian assistance.

[2] By the 6th century Abasgia shifted to the north and occupied territory between Gumista and Bzyb rivers,[3] while another tribe, the Sanigs, lived to the north of them.

[1] They are mentioned by Lycophron, Pliny the Elder, Strabo and Arrian; the 6th-century Byzantine historian Procopius wrote that they were warlike, worshiped tree deities and provided eunuchs to Justinian's court.

[4] The Abasgoi are considered the ancestors of modern Abkhaz, Abazin[4][5] and the Georgian ethnonym (Georgian: აფხაზი apxazi) "Abkhaz" is derived from the name «abasgi, abaza».