Isoko is one of the languages in Delta State spoken by the Isoko people in Isoko South, North and part of Ndokwa East Local Government Areas of Delta State, Southern part of Nigeria in Niger Delta region. It is also spoken in some part of Bayelsa. Isoko is an Edoid language The Isoko people are a tribe with some of their ancestral roots traced through history to the Benin (Aka) kingdom while some of the Isoko communities or clans have their origins from the Igbo and Urhobo. Some 750,000 people consider themselves Isoko. Language is a mark of identity and plays an all-important role in the life of a people. The Isoko language however, is being threatened with extinction as reported by Idudhe (2002), as a result of neglect in teaching, learning and use. The Isoko language has about 20 to 21 dialects, but the Aviara/Uzere dialect is the standard dialect of the language.
Michael A. Marioghae, working with Peter Ladefoged in 1962, made one of a few audio recordings of sample Isoko words that are made available at the UCLA phonetics archive.