Matbat is a heavily Papuan-influenced Austronesian language spoken in Southwest Papua, Indonesia, on the island of Misool, Raja Ampat Islands. Its dialects are Magey and Tomolol. Similar to the neighboring Ma'ya language, Matbat is one of a handful of Austronesian languages with true lexical tone rather than a pitch-accent system or complete lack of phonemic tonal contrasts as with most other Austronesian languages.