- Yachimata
- Yaita
- Yaizu
- Yamada
- Yamaga
- Yamagata
- Yamaguchi
- Yamazakichō-nakabirose
- Yamoto
- Yanagawa
- Yanagawamachi-saiwaichō
- Yanai
- Yao
- Yashio
- Yashiro
- Yasu
- Yasugichō
- Yatsuomachi-higashikumisaka
- Yawata
- Yawatahama
- Yoichi
- Yōkaichiba
- Yokkaichi
- Yokohama
- Yokosuka
- Yokote
- Yonago
- Yonakuni
- Yonedacho Sendo
- Yonezawa
- Yono
- Yorii
- Yoshida
- Yoshida-kasugachō
- Yoshii
- Yoshikawa
- Yoshino-chō
- Yoshitomi
- Yotsueda
- Yotsukaidō
- Youkaichi
- Yudomari
- Yugawara
- Yūki
- Yukuhashi
- Yuza
- Yuzawa
