Settlement 14 km north-west of Hāwera. In the 1880s Ōkaiawa was the centre of Thomas Joll’s chain of private dairy factories, which turned cooperative after Joll’s death in 1908. He is commemorated by a marble bust near the sports ground on the Ōkaiawa domain.

Meaning of place name
Ō: place of; kai: food; awa: river or valley.