Worldwide, Gretsin (Gretsin 
) is a very rare dominantly female, but seldom masculine given name. The given name Gretsin is habitual in South-eastern Asia, particularly Philippines, where it is a very rare feminine name. Much less frequently, Gretsin is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Gretsin | Estonia, India, Nicaragua, Philippines |