| Name | M/F | Meaning |
|---|---|---|
| Oleg | ![]() |
Meaning : Holy. Used in : Australian, Chinese, Czechoslovakian, Danish, Finnish, French, German, Polish, Russian, Slavic, Swedish, Australian |
| Olezka | ![]() |
Meaning : Holy. Used in : Russian |
| Ony | ![]() |
Meaning : Eagle. Used in : Russian, Slavic |
| Oral | ![]() |
Meaning : Eagle. Used in : Hindu, Latin, German, Russian, Slavic, Hebrew |
| Orel | ![]() |
Meaning : Eagle. Used in : Latin, German, Russian, Slavic, Hebrew |
| Orrel | ![]() |
Meaning : Eagle. Used in : Russian, Slavic |