There are 7 places named Oi in Japan.
All places in the world called "Oi".
Ono (18)
Ota (17)
Hongo (16)
Minato (15)
Wada (15)
Kawasaki (14)
Hama (14)
Ohama (14)
Tomari (14)
Nakamura (13)
Oshima (13)
Hara (13)
Nagahama (13)
Yoshida (12)
Okubo (12)
Sakai (12)
Hirose (11)
Kawaguchi (11)
Funakoshi (11)
Shinden (11)
Seto (11)
Okawa (11)
Kanayama (11)
Ogawa (10)
Ohara (10)
Nakayama (10)
Takata (10)
Oura (10)
Otani (10)
Shirahama (10)