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 languages are:[1][2] Usher (2020) reconstructs the consonant inventory as follows:[5] There is near complementary distribution between *p and *ɸ.

*t and *d are marginal, appearing in only a few words.

Vowels are *a *e *i *o *u. Ross (2005) reconstructs the proto-Asmat–Kamoro pronouns as: Usher (2020) reconstructs the free proto–Asmat–Kamrau Bay pronouns as:[5] Some lexical reconstructions by Usher (2020) are:[5] Proto-Asmat-Kamoro reflexes (Voorhoeve 2005)[6] of proto-Trans-New Guinea (pTNG) etyma, as listed in Pawley & Hammarström (2018):[7]