Around the world, Jancok (Jancok 
) is a rare male first name. The given name Jancok is habitual in South-eastern Asia, particularly Indonesia, where it is a rare boy's name. Likewise, Jancok is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Jancok | Slovakia, United Kingdom, Czechia, Poland, Indonesia |