Family name Холодниак (Holodniak 
, Холодниак 
, Kholodnyak 
) , all over the world, is a rare surname. The surname Холодниак is characteristic of Russia, where it is a very rare surname, Brazil, and Germany. Measured by absolute frequency, it is the most numerous in Russia, Brazil, and the United States. Also, Холодниак is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Holodniak | Germany, United States, Poland, Canada, Brazil |
| Холодниак | Russia |
| Kholodnyak | Russia, Ukraine, United States |
| Kholodniak | Germany, Ukraine |