Worldwide, Jajko (Jajko 
, Жажко 
) is an extremely rare unknown gender first name. Also, Jajko is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Jajko | Poland, France, Slovakia, United States, Germany |
| Жажко | Kazakhstan, Kyrgyzstan, Russia, Ukraine |
| fortunat jajko PL (b. 1826) |
|