Hiwa, Hiroshima

 was a town located in Hiba District, Hiroshima Prefecture, Japan.
As of March 2011, the town had a population of 1,698 and a density of 12.93 persons per km². The total area was 131.30 km².
On March 31, 2005, Hiwa, along with the towns of Kuchiwa, Saijō, Takano and Tōjō (all from Hiba District), and the town of Sōryō (from Kōnu District), was merged into the expanded city of Shōbara.