Toyoshina was a town situated within the Minamiazumi District of the Nagano Prefecture in Japan. It is located in the mountainous region of central Honshu.
The area is characterized by its location in the rural heart of Nagano, and it functioned as a local administrative division before regional consolidations. While it shares a name with other locations in Japan, this specific Toyoshina is identified strictly by its historical placement within the Minamiazumi District.