Surname Karol-Ayn (Karol-Ayn 
) , in all the world, is an extremely rare last name. Predominantly, Karol-Ayn is the forename as well as the last name. Parts of the name also exists independently as a first name Karol, and a last name Ayn.
| VARIANT | COUNTRY |
|---|---|
| Karol-Ayn | Philippines |