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All around the world, Koo (Koo
, クー
, Ку
) is quite a common unisex forename. The given name Koo is characteristic of Hong Kong, where it is quite a rare gender-neutral name, Singapore, and Ghana, where it is quite a rare male name. Measured by absolute frequency, it is the most numerous in Egypt, Indonesia, and China. Also, Koo is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Koo | Malaysia, Japan, Hong Kong, Taiwan, United States |
| クー | Japan |
| Ку | Kazakhstan, Russia, Kyrgyzstan, China, Ukraine |
| קו | Israel |
Koo is also a name for the fictitious and mythical characters: Koo Hari .