Y
- (Minamiuonuma Shi) Yamaguchi
- (Murakami Shi) Yōkaichi
- (Murakami Shi) Yokkaichi
- (Sado Shi) Yamadera
- (Kashiwazaki Shi) Yoshio
- (Kashiwazaki Shi) Yamaguchi
- (Kashiwazaki Shi) Yamamuro
- (Kashiwazaki Shi) Yasuda
- (Nagaoka Shi) Yomogihiramachi
- (Nagaoka Shi) Yamakoshi-higashitakezawa
- (Tōkamachi-shi) Yoshida-yamaya
- (Minamiuonuma Shi) Yoshizato
- (Murakami Shi) Yoshiura
- (Uonuma Shi) Yonezawa
- (Uonuma Shi) Yokone
- (Tsubame Shi) Yotsuya
- (Niigata Shi) Yokodo
- (Niigata Shi) Yamada
- (Minamikanbara-gun) Yoshida-shinden
- (Gosen Shi) Yasuide
- (Gosen Shi) Yazugawa
- (Higashikambara-gun) Yazawa
- (Agano Shi) Yamazaki
- (Niigata Shi) Yokodoi
- (Sado Shi) Yahata
- (Niigata Shi) Yashiroda
- (Itoigawa Shi) Yunokawachi
- (Jōetsu Shi) Yotsuya
- (Niigata Shi) Yotsugōya
- (Sado Shi) Yoshii