|Region||Papua province: western Asmat Regency and Yahukimo Regency|
Momuna (Momina), also known as Somahai (Somage, Sumohai), is a Papuan language spoken in the highlands of Papua province, Indonesia.
Reimer notes two dialects, one on the Balim River and one on the Rekai. One of the differences is that when /u/ follows an /u/ or /o/ in the Balim dialect, it is /i/ in the Rekai dialect. Thus the ethnonym 'Momuna' is pronounced 'Momina' in Rekai dialect.
The Somahai pronouns, singular *na, *ka, *mo, are typical of Trans–New Guinea languages. They were placed in the Central and South New Guinea branch of that family by Wurm. Ross could not locate enough evidence to classify them. Usher found them to be closest to the Mek languages, in the Central West New Guinea, which partially overlaps with Wurm's C&SNG.