A heiau (/ˈheɪ.aʊ/ HAY-ow, Hawaiian: [hejˈjɐw]) is a Hawaiian temple. Made in different architectural styles depending upon their purpose and location, they range from simple earth terraces, to elaborately constructed stone platforms. There are heiau to treat the sick (heiau hōʻola), offer first fruits, offer first catch, start rain, stop rain, increase the population, ensure the health of the nation, achieve success in distant voyaging, reach peace, and achieve success in war (luakini).
Only the luakini was dedicated through human sacrifice. There are two types of luakini. They were called the ʻohiʻa ko and hakuʻohiʻa.