thumb|right|former Hachikai village hall
thumb|Location of Hachikai in Aichi Prefecture
was a village located in Ama District, Aichi Prefecture, Japan.
As of 2003, the village had an estimated population of 4,930 and a density of 404.43 persons per km<sup>2</sup>. The total area was 12.19 km<sup>2</sup>.
On April 1, 2005, Hachikai, along with the towns of Saya and Saori, and the village of Tatsuta (all from Ama District), was merged to create the city Aisai.
References
thumb|The [[Kilometre Zero of Hachikai]]