Moho is a genus of extinct birds in the Hawaiian bird family, Mohoidae, that were endemic to the Hawaiian Islands. Members of the genus are known as ʻōʻō in the Hawaiian language. Their plumage was generally striking glossy black; some species had yellowish axillary tufts and other black outer feathers. Most of these species became extinct by habitat loss, the introduction of mammalian predators, and by extensive hunting (their plumage was used for the creation of precious ʻaʻahu aliʻi and ʻahu ʻula for aliʻi. The Kauaʻi ʻōʻō was the last species of this genus to become extinct, likely a victim of avian malaria.

Mohoidae, also known as the Hawaiian honeyeaters, was a family of Hawaiian species of now recently extinct, nectarivorous songbirds in the genera Moho (ʻōʻō) and Chaetoptila (kioea). These now extinct birds form their own family, representing the only complete extinction of an entire avian family in modern times, when the disputed family Turnagridae is regarded as invalid. The last surviving species in the family, the Kauai O'o, became extinct after 1987.