Worldwide, Nerwyn (Nerwyn 
) is a very rare predominantly boy's, but very seldom feminine first name. The forename Nerwyn is habitual in South-eastern Asia, particularly Philippines, where it is a very rare principally boy's, but scarcely female name. Very seldom, Nerwyn is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Nerwyn | Philippines, South Africa, India, Venezuela, United States |