Hasaki (波崎町) is an area located in Kamisu City, Ibaraki, Japan.
On August 1, 2005 Hasaki was merged with the old town of Kamisu, also from Kashima District, to become the new city of Kamisu.
As of 2003, the town has an estimated population of 38,983 and a density of 570.93 persons per km². The total area is 68.28 km².