Cognomen Usuku (Usuku 
) , in the world, is a rare last name. The family name Usuku is habitual in Belgium, where it is a rare surname, Romania, and Austria. In absolute terms, it most frequently occurs in Indonesia, Romania, and Belgium. Very seldom, Usuku is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Usuku | China, Indonesia, Czechia, Belgium, Romania |
| hiroki usuku researcher |
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