Mundugumor (Munduguma, Mundukomo) Biwat is a Yuat language of Papua New Guinea. It is spoken in Biwat village () of Yuat Rural LLG, East Sepik Province.
Mundukumo consonants are:
Mundukumo vowels are:
Some examples showing Mundukomo nouns and their irregular plural forms:
Similar patterns of complex nominal plural allomorphy are also found in the Lower Sepik-Ramu languages.