Surname Jatsko (Яцко 
, Jatsko 
) , globally, is quite a rare cognomen. The cognomen Jatsko is characteristic of Belarus, where it is quite a rare surname, Ukraine, and Kazakhstan, where it is a rare surname. Measured by absolute frequency, it most frequently occurs in Eastern Europe, particularly Ukraine, Russia, and Belarus.
| VARIANT | COUNTRY |
|---|---|
| Яцко | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| Jatsko | Estonia, United States, Belarus |
| aleksander vladimirovich jatsko RU (b. 1958) |
|