This list of mythical creatures that begin with this letter and I am constantly gathering information from each continent, and is continually being updated.
Nawao (Hawaiian)
In Hawaiian mythology, the Nawao are a legendary people, a wild, large-sized hunting people, descended from Lua-nu'u. Other sources suggest that the Nawao were present in Hawaii before the Menehune who are thought to have driven them out or destroyed them.
However, folklorist Katherine Luomala believes that the legends of the Menehune and similar creatures are a post-European contact mythology. They were a race of wild people who fed upon bananas in the forest and did not associate with modern humans. They were formerly numerous, but it is believed that they were driven out or destroyed by the Menehune.