First names with first character O - Page 2
| First name | Origin | Rating |
|---|---|---|
| Odin | Nordic | 5.12 out of 17 votes |
| Odo | 2 out of 12 votes | |
| Odulf | German | 2.57 out of 7 votes |
| Odwin | Anglo-Saxon | 4.76 out of 17 votes |
| Odysseus | Greek | 3.31 out of 16 votes |
| Oktavia | Italian | 3.58 out of 12 votes |
| Oktavian | Roman | 4.27 out of 15 votes |
| Oktavianus | Roman | 3.22 out of 18 votes |
| Olaf | Swedish | 3.41 out of 17 votes |
| Olav | Swedish | 2.55 out of 11 votes |