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