Ina (伊奈町 Ina-machi) is a town located in Tsukuba District, Ibaraki Prefecture, Japan.
As of 2003, the town had an estimated population of 25,037 and a density of 549.78 persons per km². The total area was 45.54 km².
On March 27, 2006, Ina, along with the village of Yawara (also from Tsukuba District), was merged to create the city of Tsukubamirai.