>
Worldwide, Gayn (Gain
, Gayn
, Gagn
) is quite a rare epicene first name. The forename Gayn is habitual in the Democratic Republic of the Congo, where it is a rare boy's name, South Korea, where it is a rare feminine name, and India, where it is a rare gender-neutral name. Not in comparison with a country's population, it is the most numerous in India, the Democratic Republic of the Congo, and Indonesia. Much more frequently, Gayn is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Gain | Bangladesh, Philippines, India, France, United States |
| Gayn | Iraq, Canada, Philippines, India, United States |
| Gagn | Canada, India, France, United States, Democratic Republic of the Congo |
| Гайн | Belarus, Kazakhstan, Russia, Ukraine |