Surname Chainik (Chainik 
, Чайник 
) , all over the world, is a very rare last name. The last name Chainik is habitual in Ukraine, where it is a rare surname, Kazakhstan, where it is a very rare surname, and Russia, where it is an extremely rare surname. Very seldom, Chainik is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Chainik | India |
| Чайник | Russia, Ukraine, Kazakhstan |