Surname Sumihiko (Sumihiko ) , throughout the world, is an extremely rare last name. Much more frequently, Sumihiko is the forename as well as the last name.
スミヒコ
Seto, Kaieda, Kajioka, Hagita, Uchiumi, Yoshida, Shimamura, Watanaee, and Taniguchi
) , throughout the world, is an extremely rare last name. Much more frequently, Sumihiko is the forename as well as the last name.