In the entire world, Chan-Ok (찬옥 
, Chan-Ok) is a rare masculine first name. The forename Chan-Ok is characteristic of Eastern Asia, particularly South Korea, where it is a rare male name. Parts of the name also exists independently as a last name Chan, and a last name Ok.
| chan-ok choi South Korean taekwondo practitioner, DE (b. 1961) |
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| choi chan-ok korean-German taekwondo practitioner, KR (b. 1961) |
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| chan-ok park (b. 1960) |
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