Worldwide, Chajko (Chajko 
, Шажко 
) is an extremely rare female first name. More prevalently, Chajko is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Chajko | Poland, Belarus, United States, Germany, Czechia |
| Шажко | Kazakhstan, Russia, Kyrgyzstan, Ukraine |