Around the world, Куйк (Kuik 
, Kuyk 
, Куйк 
) is a very rare gender-neutral forename. The forename Куйк is characteristic of Singapore, where it is a rare epicene name, Malaysia, where it is a very rare gender-neutral name, and India, where it is an extremely rare epicene name. More frequently, Куйк is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Kuik | Netherlands, Malaysia, Singapore, United States, Poland |
| Kuyk | Belgium, Netherlands, Canada, United States, South Africa |
| Куйк | Russia |
| Kujk | Germany |