The Hawaiʻi mamo is an extinct species of Hawaiian honeycreeper. It was endemic to Hawaii Island. It became extinct due to habitat loss, mosquitoes, introduced predators such as the small Indian mongoose, and overcollecting.

Hawaiian honeycreepers are a group of small birds endemic to Hawaiʻi. They are members of the finch family Fringillidae, closely related to the rosefinches (Carpodacus), but many species have evolved features unlike those present in any other finch. Their great morphological diversity is the result of adaptive radiation in an insular environment. Many have been driven to extinction since the first humans arrived in Hawaii, with extinctions increasing over the last two centuries following European discovery of the islands, with habitat destruction and especially invasive species being the main causes.