Around the world, Ethelwynn (Ethelwynn 
) is an extremely rare feminine first name.
| VARIANT | COUNTRY |
|---|---|
| Ethelwynn | United States, South Africa |
| ethelwynn rice beckwith American economist (1879–1955), US (b. 1879) |
|
|
| ethelwynn trewavas English ichthyologist (1900–1993), GB (b. 1900) |
|
Hanft, and Stellenberg