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Surname Suiko (Suiko , Суйко , スイコ ) , throughout the world, is quite a rare last name. The surname Suiko is characteristic of Japan, where it is a rare surname, Kazakhstan, where it is a very rare surname, and Malaysia. In absolute terms, this name is the most popular in Japan, Russia, and Kazakhstan. More prevalently, Suiko is the forename as well as the last name.