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 | India, United Kingdom, United States, Indonesia, Germany |
| Rook | India, United Kingdom, United States, Egypt, Algeria |
| Rouk | India, United States, Indonesia, Egypt, Algeria |
| Рук | Ukraine, Kazakhstan, Belarus, Russia, Kyrgyzstan |