Last name Рук (Ruk 
, Rook 
, Rouk ) , around the world, is a common surname. The cognomen Рук is habitual in Estonia, where it is quite a common surname, Netherlands, and Algeria, where it is quite a rare surname. Measured by absolute frequency, this name is the most popular in the United States, Egypt, and Algeria. Also, Рук is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ruk | Germany, Indonesia, United Kingdom, United States, India |
| Rook | United Kingdom, Algeria, Egypt, United States, India |
| Rouk | Indonesia, Algeria, Egypt, United States, India |
| Рук | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |