There are 2 places named Onogawa in Japan.
All places in the world called "Onogawa".
Ono (18)
Ota (17)
Hongo (16)
Minato (15)
Wada (15)
Hama (14)
Ohama (14)
Tomari (14)
Kawasaki (14)
Nakamura (13)
Hara (13)
Nagahama (13)
Oshima (13)
Yoshida (12)
Okubo (12)
Sakai (12)
Funakoshi (11)
Kawaguchi (11)
Shinden (11)
Seto (11)
Okawa (11)
Kanayama (11)
Hirose (11)
Nakayama (10)
Takata (10)
Oura (10)
Otani (10)
Shirahama (10)
Ichiba (10)
Ikeda (10)