Kamiminochi (上水内郡 Kamiminochi-gun?) is a district located in Nagano Prefecture, Japan.
As of 2011, the district has an estimated population of 23,774. As a result of mergers the total area of the district is now 282.65 km².
Coordinates: 36°46′59″N 138°09′14″E / 36.783°N 138.154°E