Hiwaki (樋脇町 Hiwaki-chō) was a town located in Satsuma District, Kagoshima, Japan.
On October 12, 2004 Hiwaki was merged with the towns of Iriki, Kedōin and Tōgō, and the villages of Kamikoshiki, Kashima, Sato and Shimokoshiki, all from Satsuma District, and the old city of Sendai, to form the new city of Satsumasendai.
As of 2003, the town had an estimated population of 7,780 and the density of 121.22 persons per km². The total area was 64.18 km².