How many places in Japan are called O?

There are 3 places named O in Japan.

All places in the world called "O".

Location O:

• Hyogo
• Nagasaki
• Okinawa

Cities

Ono (18)
Ota (17)
Hongo (16)
Wada (15)
Minato (15)
Tomari (14)
Kawasaki (14)
Hama (14)
Ohama (14)
Nakamura (13)
Hara (13)
Nagahama (13)
Oshima (13)
Yoshida (12)
Okubo (12)
Sakai (12)
Kanayama (11)
Hirose (11)
Kawaguchi (11)
Funakoshi (11)
Shinden (11)
Seto (11)
Okawa (11)
Ikeda (10)
Kamo (10)
Shimizu (10)
Yamada (10)
Takada (10)
Ogawa (10)
Ohara (10)