| Name | M/F | Meaning |
|---|---|---|
| Oldrich | ![]() |
Meaning : One With Riches And Power Used in : Australian, Czechoslovakian, Czech |
| Ondrej | ![]() |
Meaning : In Polish meaning is : Manly, Brave, Strong Used in : Australian, Czechoslovakian, Czech, German, Polish |
| Ondrus | ![]() |
Meaning : Manly Used in : Czechoslovakian, Czech |
| Ota | ![]() |
Meaning : In Teutonic meaning is : Rich. Used in : French, German, British, Czechoslovakian, Czech, English, Teutonic, Czechoslovakian |
| Otik | ![]() |
Meaning : Wealthy Used in : Czechoslovakian, Czech, German, Teutonic |