Throughout the world, Оьлга (Olga 
, Оьлга 
) is a prevalent girly first name. The forename Оьлга is habitual in Greece, where it is a widespread female name, Argentina, where it is a common feminine name, and Moldova, where it is a common predominantly feminine, but very seldom male name (explore the name in all countries). Measured by absolute frequency, the name is most common in Latin America and the Caribbean, particularly Mexico, Argentina, and Brazil. Much less frequently, Оьлга is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Olga | Peru, Argentina, Brazil, United States, Mexico |
| Оьлга | Kazakhstan, Russia |
Оьлга is also a prevalent name for the fictitious and mythical characters: Olga Pataki , the fictional character in Hey Arnold!; Olga Gurlukovich , the character in Metal Gear; Olga Mesmer ; Olga Terrats Herraiz , character in Les de l'hoquei and Olga Barcowa , and in many other works.