Cognomen Iselyn (Iselyn 
) , throughout the world, is an extremely rare surname. The cognomen Iselyn is characteristic of Latin America and the Caribbean, particularly Chile, where it is an extremely rare surname, and Mexico. More prevalently, Iselyn is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Iselyn | Mexico, Spain, Peru, United States, Philippines |