Last name Гритцук (Гритцук 
, Gritsuk 
) , around the globe, is a rare family name. The last name Гритцук is habitual in Belarus, where it is quite a rare surname, Estonia, where it is a rare surname, and Hungary, where it is a very rare surname. Measured by absolute frequency, this name is the most popular in Belarus, Russia, and Japan.
| VARIANT | COUNTRY |
|---|---|
| Гритцук | Russia |
| Gritsuk | Japan, Russia, Estonia, Belarus, United States |