|Native to||Papua New Guinea|
|Region||Los Negros Island, Manus Province|
|(450–500 cited 1994)|
Loniu is an Austronesian language spoken along the southern coast of Los Negros Island in the Manus Province, immediately east of Manus Island in Manus Province, Papua New Guinea. Loniu is spoken in the villages of Loniu and Lolak, and there are estimated to be 450–500 native speakers, although some live in other Manus villages or on the mainland of PNG.
Loniu generally fits with most of the observations made about Oceanic languages, specifically the Admiralty Islands languages. The six morphosyntactic features of 'Type B' Oceanic Languages (which include the Admiralties languages) as noted by Ross are found in Loniu. The language is essentially SVO and contains prepositions.
- Hamel (1994)
- Capell, Arthur (1971). The Austronesian languages of Australian New Guinea. The Hague: Mouton. pp. 240–340.
- Capell, Arthur (1976). Features of Austronesian languages in the New Guinea area in general in contrast with other Austronesian languages of Melanesia. Canberra.
- Capell, Arthur (1976). General picture of Austronesian languages, New Guinea area. Canberra.
- Healey, Alan (1976). Austronesian languages: Admiralty Islands area. Canberra.
- Ross, M.D. (1988). "Proto Oceanic and the Austronesian languages of Western Melanesia". Pacific Linguistics. C-98.
- Hamel, Patricia J. (1993). "Serial verbs in Loniu and an evolving preposition". Oceanic Linguistics. 32 (1): 111–132. doi:10.2307/3623099. JSTOR 3623099.
- Hamel, Patricia J. (1994). A Grammar and Lexicon of Loniu, Papua New Guinea. Pacific Linguistics Series C-103. Canberra: The Australian National University. doi:10.15144/PL-C103. hdl:1885/145798.