Kamiina (上伊那郡 Kamiina-gun?) is a district located in Nagano Prefecture, Japan.
As of May, 2008, the district has an estimated Population of 86,453 and a Density of 168 persons/km². The total area is 514.55 km².
There are 3 towns and 3 villages within the district.
On the other hand, if the cities of Ina and Komagane were included, the area will be known as the Kamiina Region.
Coordinates: 35°47′46″N 137°51′43″E / 35.796°N 137.862°E