M
- (Matsumoto Shi) Mizukami
- (Nagano Shi) Minamikomatsuo
- (Kitaazumi Gun) Minamigōdo
- (Azumino-Shi) Minamiogura
- (Azumino-Shi) Muromachi
- (Matsumoto Shi) Minamiwada
- (Matsumoto Shi) Momose
- (Shiojiri-shi) Makino
- (Shiojiri-shi) Motoyama
- (Shiojiri-shi) Momooka
- (Nagano Shi) Minaminagano
- (Higashichikuma Gun) Midarehashi
- (Kamiminochi-gun) Mure
- (Okaya Shi) Minato
- (Ueda Shi) Magario
- (Hanishina-gun) Minamijō
- (Komoro Shi) Mikage-shinden
- (Saku Shi) Machinaka
- (Minamisaku-gun) Matsubara
- (Kamitakai-gun) Maki
- (Shimominochi-gun) Mitsukuri
- (Shimotakai-gun) Maezaka
- (Shimotakai-gun) Mushiu
- (Iiyama Shi) Mizuho-toyo
- (Minamisaku-gun) Mawarimedaira
- (Matsumoto Shi) Muraimachi-minami
- (Kitasaku-gun) Motai
- (Saku Shi) Mochizuki
- (Kiso-gun) Miyanokoshi
- (Kamiina-gun) Miyaki