There is one place named Oniishi in Japan.
All places in the world called "Oniishi".
Ono (18)
Ota (17)
Hongo (16)
Minato (15)
Wada (15)
Ohama (14)
Tomari (14)
Kawasaki (14)
Hama (14)
Nakamura (13)
Hara (13)
Nagahama (13)
Oshima (13)
Sakai (12)
Yoshida (12)
Okubo (12)
Funakoshi (11)
Kawaguchi (11)
Shinden (11)
Seto (11)
Okawa (11)
Kanayama (11)
Hirose (11)
Takata (10)
Oura (10)
Otani (10)
Shirahama (10)
Ichiba (10)
Ikeda (10)
Kamo (10)