The Piru Bay languages are a group of twenty Malayo-Polynesian languages, spoken on Ambon Island and around Piru Bay on the island of Seram, Indonesia. None of the languages have more than about twenty thousand speakers, and several are endangered with extinction.
Many of the Piru Bay languages form a dialect continuum. The Ambon branch should not to be confused with more distantly related Ambonese Malay, which is also often simply known as Ambonese.
^James T. Collins. 1983. The historical relationships of the languages of Central Maluku, Indonesia. Canberra: Research School of Pacific and Asian Studies, Australian National University. (Pacific Linguistics: Series D-47.)