First names with first character O - Page 1
| First name | Origin | Rating |
|---|---|---|
| Obadia | Hebrew | 1.85 out of 13 votes |
| Oberto | Italian | 2.25 out of 16 votes |
| Oceana | English | 4.29 out of 7 votes |
| Octavia | Italian | 4.21 out of 19 votes |
| Octavian | German, English | 3.71 out of 7 votes |
| Octavius | Roman | 2.8 out of 15 votes |
| Odalinde | German | 2.86 out of 14 votes |
| Odelia | English | 3.75 out of 4 votes |
| Odetta | 3.29 out of 17 votes | |
| Odilo | 1.89 out of 19 votes |