In all the world, Эркай (Nikul 
, Эркай 
) is quite a rare principally boy's, but scarcely feminine given name. The given name Эркай is characteristic of Kyrgyzstan, where it is a rare girly name, United Arab Emirates, where it is a rare boy's name, and India, where it is a rare principally male, but scarcely feminine name. Not in comparison with a country's population, the name is most common in India, the United States, and the United Kingdom. Much less frequently, Эркай is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Nikul | United Kingdom, United Arab Emirates, India, Thailand, United States |
| Эркай | Kyrgyzstan |