Family name Ятсык (Ятсык 
, Iatsyk 
) , around the world, is a very rare cognomen. The family name Ятсык is habitual in Russia, where it is a very rare surname, Canada, where it is an extremely rare surname, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Ятсык | Russia |
| Iatsyk | Canada, United States |