Surname Valadzko (Valadzko 
, Валадзько ) , in all the world, is a rare cognomen. The last name Valadzko is characteristic of Belarus, where it is quite a rare surname, Latvia, where it is a rare surname, and Estonia. In absolute terms, it is the most numerous in Belarus, Latvia, and the United States. Much less frequently, Valadzko is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Valadzko | Estonia, Spain, Belarus, United States, Latvia |
| Валадзько | Belarus |
| darya valadzko Belarus volleyball player |
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| siarhei valadzko Belarusian rower, BY (b. 1992) |
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