Family name Olga Dayana (Olga Dayana 
) , in all the world, is an extremely rare cognomen. The cognomen Olga Dayana is characteristic of Latin America and the Caribbean, particularly Chile, where it is an extremely rare surname. Much more prevalently, Olga Dayana is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Olga Dayana | Costa Rica, Spain, Ecuador, Chile |