Ina (伊奈町; -machi) is a town located in Tsukuba District, Ibaraki, 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 was merged with the village of Yawara, also from Tsukuba District, to form the new city of Tsukubamirai, Ibaraki.