Cognomen Krupko (Krupko 
, Крупко 
) , in the world, is quite a rare family name. The last name Krupko is habitual in Belarus, where it is quite a rare surname, Ukraine, and Latvia. In absolute terms, this name is the most popular in Eastern Europe, particularly Ukraine, Russia, and Belarus. Very seldom, Krupko is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Krupko | Russia, Belarus, United States, Latvia, Poland |
| Крупко | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| stefan krupko PL (b. 1890) |
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| alexey krupko chess player (b. 1984) |
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