The Lake Kurumoi rainbowfish (Melanotaenia parva) is a species of freshwater rainbowfish in the subfamily Melanotaeniinae.

It was endemic to West Papua in Indonesia.

Its natural habitat was only the small Lake Kurumoi in the Bird's Head Peninsula.

[2] It is primarily threatened by habitat loss, however it is unknown if the wild population still exists as it has probably been extirpated from its entire native range.

This Atheriniformes article is a stub.