Koaia may refer to:
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Koaia (plant), a Hawaiian tree species
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Koaiá people, an ethnic group of Brazil
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Koaiá language
Kwaza (also written as Kwazá or Koaiá, ) is an endangered language, endangered Amazonian language spoken by 25 of the Kwaza people of Brazil. Kwaza is an unclassified language. It has grammatical similarities with neighboring Aikanã language, ...
, a language of Brazil
{{Disambiguation
Language and nationality disambiguation pages