Here you can find some statistics about the name Yukiko Oka. You can find ethical spread of the last name Oka, gender usage of the name Yukiko, famous people named Yukiko Oka and you can leave a public message to Yukiko Oka.
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The lastname Oka is an unpopular surname in the USA, the number of the people with the lastname Oka is about 900.
The name Yukiko is used in the USA in the 100% (3,000 c.a.) of time as a female name. In the USA the name Yukiko doesn't occur as male name.