The olomaʻo (Myadestes lanaiensis) is a small, dark solitaire endemic to Maui, Lānaʻi and Molokaʻi in the Hawaiian Islands.

The olomaʻo is still classified as Critically Endangered due to the possibility that an extremely small population or individuals may still exist.

[1] In the late 19th century, it was considered common to abundant on the Maui, Lanai, and Molokaʻi, but land clearing, including the establishment and subsequent development of Lānaʻi City, and avian malaria brought on by introduced mosquitoes decimated the birds.

Introduced animals such as feral pigs (which create pools from their wallows for breeding mosquitoes) also aided in its demise.

It is closely related to the other species of Hawaiian thrushes, the puaiohi (M. palmeri), ʻōmaʻo (M. obscurus), and the probably extinct kāmaʻo (M. myadestinus).