Surname Смайльс (Смайльс 
) , in the world, is a very rare cognomen. The family name Смайльс is characteristic of Eastern Europe, particularly Russia, where it is a very rare surname, and Ukraine, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Смайльс | Russia, Ukraine |
Ольга, Симона, Наталия, Светлана, and Константин