In Hawaiian mythology, an ʻaumakua (//; often spelled aumakua) is a family god, often a deified ancestor. The Hawaiian plural of ʻaumakua is nā ʻaumākua ([naːˈʔɐumaːˈkuwə]), although in English the plural is usually ʻaumakuas. Nā ʻaumākua frequently manifested as animals such as sharks or owls. Nā ʻaumākua were worshipped at localities (often rocks) where they were believed to "dwell". The appearance of an animal one regarded as an ʻaumakua was often believed to be an omen (of good or ill). There are also many stories of nā ʻaumākua (in animal form) intervening to save their descendants from harm. It was extremely bad luck to harm a manifested ʻaumakua.
Nā ʻaumākua were thus animals, places or rocks, and people. Ancient Hawaiians would have seen no contradiction in a powerful spirit being able to appear as all three, switching from form to form as convenient—as is indeed seen in many stories of gods and demigods.
A symbiotic relationship exists between person and ʻaumakua, the personal guardians of each individual and their family and the ancient source gods from whom Hawaiians were descended.
ʻAumakua can manifest in nature. The form varies family to family. Whatever its form, the ʻaumakua is one specific shark, owl, etc. However, all members of the species are treated with respect of family members.
If family ʻaumakua, these manifestations were not harmed or eaten; in turn, ʻaumakua warned and reprimanded in dreams, visions, and calls.
"ʻAumākua are intimate members of the human family, spiritual relationships with them are especially close and their presence is sought for feast and festivity, as well as in time of crisis. They act as healers and advisors, counteracting troubles and punishing faults." - J. Gutmanis
ʻAumākua could appear as:
The Aumakua appear as protection deities in the Luke Coles Book Series, by Josh Walker.
In Pokémon Sun and Pokémon Moon Tapu Koko is called the guardian deity of Melemele Island. Each other island also has its own specific guardian deity. There is also a line of dragon Pokémon based on the mo'o.
At the 1:08 mark in the Disney: Moana Official US Teaser Trailer, Maui is shown to transform into an owl, showing reference to the pueo. Additionally, the concept of the Aumakua is evidently an inspiration for Tala's transformation into a manta ray; the Aumakua is referenced by name in pre-production artwork.
In the 1993 novel The Fifth Sacred Thing by Starhawk, Aumakua is discussed as a synonym for the 'oversoul' or 'morphogenetic field' of a virus as a collective entity in the ch'i world. The virus is a major plot device.