Kamiina (上伊那郡; -gun) is a district located in Nagano, Japan.

As of 2003, the district has an estimated population of 95,833 and a density of 98.32 persons per km². The total area is 974.72 km².

Towns and villages

• Hase
• Iijima
• Minamiminowa
• Minowa
• Miyada
• Nakagawa
• Takato
• Tatsuno