Trans–New Guinea (TNG) is an extensive family of Papuan languages spoken on the island of New Guinea and neighboring islands ‒ corresponding to the country Papua New Guinea as well as parts of Indonesia.
The West Papuan languages are a proposed language family of about two dozen non-Austronesian languages of the Bird's Head Peninsula of far western New Guinea, the island of Halmahera and its vicinity, spoken by about 220,000 people in all. It is not established if they constitute a proper linguistic family or an areal network of genetically unrelated families.
The Mantion–Meax or (South)East Bird's Head languages are a language family of three languages in the "Bird's Head Peninsula" of western New Guinea, spoken by all together 20,000 people.
The Bunak language is the language of the Bunak people of the mountainous region of central Timor, split between the political boundary between West Timor, Indonesia, particularly in Lamaknen District and East Timor. It is one of the few on Timor which is not an Austronesian language, but rather a Papuan language of the Timor-Alor-Pantar language family. The language is surrounded by Malayo-Polynesian languages, like Uab Meto and Tetum.
Western Pantar, sometimes referred to by the name of one of its dialects, Lamma, is a Papuan language spoken in the western part of Pantar island in the Alor archipelago of Indonesia. Western Pantar is spoken widely in the region by about 10,000 speakers. Although speakers often use Malay in political, religious, and educational contexts, Western Pantar remains the first language of children of the region, and is acquired to some extent by immigrants.
The Greater Awyu or Digul River languages, known in earlier classifications with more limited scope as Awyu–Dumut (Awyu–Ndumut), are a family of perhaps a dozen Trans–New Guinea languages spoken in eastern West Papua in the region of the Digul River. Six of the languages are sufficiently attested for a basic description; it is not clear how many of the additional names may be separate languages.
The Asmat – Kamrau Bay languages are a family of a dozen Trans–New Guinea languages spoken by the Asmat and related peoples in southern Western New Guinea. They are believed to be a recent expansion along the south coast, as they are all closely related, and there is little differentiation in their pronouns.
The Marind–Yaqai (Marind–Yakhai) languages are a well established language family of Papuan languages, spoken by the Marind-anim. They form part of the Trans–New Guinea languages in the classifications of Stephen Wurm and Malcolm Ross, and were established as part of the Anim branch of TNG by Timothy Usher.
The Pauwasi languages are a likely family of Papuan languages, mostly in Indonesia. The subfamilies are at best only distantly related. The best described Pauwasi language is Karkar, across the border in Papua New Guinea. They are spoken around the headwaters of the Pauwasi River in the Indonesian-PNG border region.
The South Bird's Head or South Doberai languages are three families of Papuan languages. They form part of the Trans–New Guinea languages in the classifications of Malcolm Ross (2005) and Timothy Usher (2020), though Pawley and Hammarström (2018) do not consider them to be part of Trans–New Guinea. However, according to Dryer (2022), based on a preliminary quantitative analysis of data from the ASJP database, South Bird's Head languages are likely to be a subgroup of Trans–New Guinea.
The West Bomberai languages are a family of Papuan languages spoken on the Bomberai Peninsula of western New Guinea and in East Timor and neighboring islands of Indonesia.
The Alor–Pantar languages are a family of clearly related Papuan languages spoken on islands of the Alor archipelago near Timor in southern Indonesia. They may be most closely related to the Papuan languages of eastern Timor, but this is not yet clear. A more distant relationship with the Trans–New Guinea languages of the Bomberai peninsula of Western New Guinea has been proposed based on pronominal evidence, but though often cited has never been firmly established.
The Inland Gulf languages are a family of Trans–New Guinea languages in the classifications of Stephen Wurm (1975) and Malcolm Ross (2005). The unity of the languages was established by K. Franklin in 1969. Although the family as a whole is clearly valid, Ipiko is quite distinct from the other languages.
The Kamula–Elevala languages are a small family of the Trans–New Guinea languages spoken in the region of the Elevala River.
The Ok languages are a family of about a dozen related Trans–New Guinea languages spoken in a contiguous area of eastern Irian Jaya and western Papua New Guinea. The most numerous language is Ngalum, with some 20,000 speakers; the best known is probably Telefol.
The Kainantu–Goroka languages are a family of Papuan languages established by Arthur Capell in 1948 under the name East Highlands. They formed the core of Stephen Wurm's 1960 East New Guinea Highlands family, and are one of the larger branches of Trans–New Guinea in the 2005 classification of Malcolm Ross.
The West Trans–New Guinea languages are a suggested linguistic linkage of Papuan languages, not well established as a group, proposed by Malcolm Ross in his 2005 classification of the Trans–New Guinea languages. Ross suspects they are an old dialect continuum, because they share numerous features that have not been traced to a single ancestor using comparative historical linguistics. The internal divisions of the languages are also unclear. William A. Foley considers the TNG identity of the Irian Highlands languages at least to be established.
The North Halmahera languages are a family of languages spoken in the northern and eastern parts of the island of Halmahera and some neighboring islands in Indonesia. The southwestern part of the island is occupied by the unrelated South Halmahera languages, which are a subgroup of Austronesian. They may be most closely related to the languages of the Bird's Head region of West Papua, but this is not well-established.
The Oirata–Makasai, or Eastern Timor, languages are a small family of Papuan languages spoken in eastern Timor and the neighboring island of Kisar.
Proto-Trans–New Guinea is the reconstructed proto-language ancestral to the Trans–New Guinea languages. Reconstructions have been proposed by Malcolm Ross and Andrew Pawley.
