Last name Чан-Ок (Чан-Ок 
) , across the world, is an extremely rare family name. Predominantly, Чан-Ок is the forename as well as the last name. Parts of the name also exists independently as a last name Чан, and a first name Ок.
| VARIANT | COUNTRY |
|---|---|
| Чан-Ок | Kazakhstan |