Nagano 3rd district (é·éÂÂçÂÂ第3åº, Nagano-ken dai-sanku or é·éÂÂ3åº, Nagano sanku) is a single-member constituency of the House of Representatives, the lower house of the national Diet of Japan. It is located in central and eastern part of Nagano Prefecture and consists of Ueda City, Komoro City, Chikuma City, Saku City, Tà Âmi City, Minamisaku District, Kitasaku District, Chiisagata District and Hanishina District. As of December 2020, 400,529 eligible voters were registered in the district.
Yosei Ide, a Liberal Democrat, has represented this district since December 2014.