In the entire world, Gregin (Gregin 
) is a very rare gender-neutral first name. The first name Gregin is habitual in South-eastern Asia, particularly Philippines, where it is an extremely rare unisex name. Also, Gregin is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Gregin | Philippines, India, United States, Croatia, South Africa |