Ma'ya is an Austronesian language spoken in West Papua by 6,000 people. It is spoken in coastal villages on the islands Misool, Salawati, and Waigeo in the Raja Ampat islands. It is spoken on the boundary between Austronesian and Papuan languages. Both its tone and stress are lexically distinctive. That means both the stress and the pitch of a word may affect meaning. The stress and tone are quite independent from one another, in contrast to their occurrence in Swedish and Serbo-Croatian. It has three tonemes (high, rising and falling). Out of over a thousand Austronesian languages, there are only a dozen with lexical tone; in this case it appears to be a remnant of shift from Papuan languages. Ma'ya has five dialects, three on the island Waigeo (Laganyan, Wauyai, and Kawe), one on Salawati, and extinct or nearly extinct Batanta. The prestige dialect is the one on Salawati. The Waigeo dialects have /s/ and /ʃ/, where the varieties spoken on Salawati and Misool have /t/ and /c/ respectively. Batanta, now extinct, was evidently unintelligible with its neighbours.