The Maui Nui 'akialoa or Lana'i 'akialoa (Akialoa lanaiensis) was a Hawaiian honeycreeper of the subfamily Carduelinae and the family Fringillidae. It was endemic to the island of Lanai, Hawaii in modern times, but seems to have occurred on all major islands of former Maui Nui before human settlement. It was a grayish-yellow bird that was found at mid-altitude areas where it was seen pecking on bark in search or insects and seen pecking at flowers in search of nectar. The bird was six inches long, with a bill that was an inch and a half in length.