Koro is an Oceanic language spoken on Gaua island in Vanuatu. Its 280 speakers live in the village of Koro, on the south coast of Gaua.
Koro is a distinct language from its immediate neighbours, Dorig (300 sp.) and Olrat (4 sp.).
The name Koro, spelled natively as , is an endonym referring to the village.
Koro has eight phonemic vowels. These include seven monophthongs and one diphthong .
The diphthong is spelled as .
The system of personal pronouns in Koro contrasts clusivity, and distinguishes four numbers (singular, dual, trial, plural).
Spatial reference in Koro is based on a system of geocentric (absolute) directionals, which is typical of Oceanic languages.