Cognomen Kapko (Kapko 
, Капко 
, กัปโก ) , across the world, is quite a rare surname. The surname Kapko is characteristic of Eastern Europe, particularly Slovakia, where it is quite a rare surname, Ukraine, and Belarus, where it is a rare surname. Measured by absolute frequency, this name is the most popular in Ukraine, Thailand, and Russia. Very seldom, Kapko is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kapko | Thailand, Slovakia, Argentina, United States, Poland |
| Капко | Kyrgyzstan, Russia, Belarus, Kazakhstan, Ukraine |
| กัปโก | Thailand |
| jerzy kapko PL (b. 1921) |
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| ján kapko Czechoslovak soccer player (b. 1960) |
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