Yawa Languages

The Yawa languages, or Yapen, are a small family of two closely related Papuan languages, Yawa (or Yava) and Saweru, which are often considered to be divergent dialects of a single language (and thus a language isolate). They are spoken on central Yapen Island and nearby islets, in Cenderawasih Bay, Indonesian Papua, which they share with the Austronesian Yapen languages.

Yawa proper had 6000 speakers in 1987. Saweru has been variously reported to be partially intelligible with other dialects of Yawa and to be considered a dialect of Yawa by its speakers, and to be too divergent for intelligibility and to be perceived as a separate language. It is moribund, spoken by 150 people out of an ethnic group of 300.