The Papuan languages are the non-Austronesian languages spoken on the western Pacific island of New Guinea, as well as neighbouring islands in Indonesia, Solomon Islands, and East Timor. It is a strictly geographical grouping, and does not imply a genetic relationship.
The Left May or Arai languages are a small language family of half a dozen closely related but not mutually intelligible languages in the centre of New Guinea, in the watershed of the Left May River. There are only about 2,000 speakers in all. Foley (2018) classifies them separately as an independent language family, while Usher (2020) links them with the Amto–Musan languages.
The Border or Upper Tami languages are an independent family of Papuan languages in Malcolm Ross's version of the Trans–New Guinea proposal.
The Piawi languages are a small family of Papuan languages spoken in the Schraeder Range of the Madang Highlands of Papua New Guinea that had been part of Stephen Wurm's Trans–New Guinea proposal. They are now connected to the Arafundi and Madang languages.
The Ramu–Lower Sepika.k.a.Lower Sepik–Ramu languages are a proposed family of about 35 Papuan languages spoken in the Ramu and Sepik river basins of northern Papua New Guinea. These languages tend to have simple phonologies, with few consonants or vowels and usually no tones.
The Sepik or Sepik River languages are a family of some 50 Papuan languages spoken in the Sepik river basin of northern Papua New Guinea, proposed by Donald Laycock in 1965 in a somewhat more limited form than presented here. They tend to have simple phonologies, with few consonants or vowels and usually no tones.
The Yuat languages are an independent family of five Papuan languages spoken along the Yuat River in East Sepik Province, Papua New Guinea. They are an independent family in the classification of Malcolm Ross, but are included in Stephen Wurm's Sepik–Ramu proposal. However, Foley and Ross could find no lexical or morphological evidence that they are related to the Sepik or Ramu languages.
The Ndu languages are the best known family of the Sepik languages of East Sepik Province in northern Papua New Guinea. Ndu is the word for 'man' in the languages that make up this group. The languages were first identified as a related family by Kirschbaum in 1922.
The Lower Sepik a.k.a. Nor–Pondo languages are a small language family of East Sepik Province in northern Papua New Guinea. They were identified as a family by K Laumann in 1951 under the name Nor–Pondo, and included in Donald Laycock's now-defunct 1973 Sepik–Ramu family.
The Ramu languages are a family of some thirty languages of Northern Papua New Guinea. They were identified as a family by John Z'graggen in 1971 and linked with the Sepik languages by Donald Laycock two years later. Malcolm Ross (2005) classifies them as one branch of a Ramu – Lower Sepik language family. Z'graggen had included the Yuat languages, but that now seems doubtful.
The Grass languages are a group of languages in the Ramu language family. It is accepted by Foley (2018), but not by Glottolog. They are spoken in East Sepik Province, Papua New Guinea, with a small number of speakers also located just across the provincial border in Madang Province.
The Ottilien or Watam-Awar-Gamay languages are a small family of clearly related languages,
The Tama languages are a small family of three clusters of closely related languages of northern Papua New Guinea, spoken just to the south of Nuku town in eastern Sandaun Province. They are classified as subgroup of the Sepik languages. Tama is the word for 'man' in the languages that make up this group.
The Ram languages are a small group of 3 languages spoken in Sandaun Province, Papua New Guinea. They are spoken directly to the northeast of the Yellow River languages and directly to the south of the Wapei languages, both of which are also Sepik groups. Ram is the word for 'man' in the languages that make up this group.
The Nukuma languages are a small family of three clearly related languages:
The Mongol–Langam, Koam, or Ulmapo languages are a language group of Keram Rural LLG, East Sepik Province, Papua New Guinea belonging to the Ramu language family. Foley (2018) includes them within the Grass languages, but they were not included in Foley (2005).
The Arafundi languages are a small family of clearly related languages in East Sepik Province, Papua New Guinea. They are conjectured to be related to the Piawi and Madang languages. They are named after the Arafundi River.
The Lower Ramu or Ottilien–Misegian languages consist of two branches in the Ramu language family. They are all spoken in Yawar Rural LLG, Madang Province, Papua New Guinea.
Kambota.k.a.Ap Ma, is a Keram language of Papua New Guinea. Compared to its nearest relative, Ambakich, Kambot drops the first segment from polysyllabic words.
The Wogamus languages are a pair of closely related languages,
