Ishige (石下町 Ishige-machi?) was a town located in Yūki District, Ibaraki Prefecture, Japan.
As of 2003, the town had an estimated population of 24,960 and a density of 569.34 persons per km². The total area was 43.84 km².
On January 1, 2006, Ishige was merged into the expanded city of Mitsukaido; which later the combined city's name officially became Jōsō.
Coordinates: 36°07′N 139°58′E / 36.117°N 139.967°E