Family name Лоек (Loek 
, Лоек 
, Loyek 
) , all around the world, is a rare cognomen. The last name Лоек is habitual in Netherlands, where it is a rare surname, Austria, and Singapore. Not in comparison with a country's population, this name is the most popular in Indonesia, the United States, and Russia. More frequently, Лоек is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Loek | Germany, Netherlands, Indonesia, United States, Belgium |
| Лоек | Ukraine, Russia, Kazakhstan |
| Loyek | Canada, India, United States, Germany |