| N A M E | O R I G I N | M E A N I N G |
| Odel | Anglo-Saxon | Wealthy. |
| Odell | Old German, Greek, Danish | little wealthy one; ode; otter |
| Odgar | Welsh | Legendary son of Aedd. |
| Odhert | German | Wealthy. |
| Odhran | Irish | Pale green. |
| Odi | Anglo-Saxon | Wealthy defender. |
| Odil | French | rich |
| Odilo | Teutonic | Rich. |
| Odin | Norse | head God in Norse mythology |
| Odion | Nigerian | first of twins |
| Odo | French | Name of a bishop. |
| Odom | English | Son in law. |
| Odon | Hungarian | wealthy protector |
| Odran | Gaelic | Pale. |
| Odwolf | English | Wealthy wolf. |
| Odwolfe | English | Wealthy wolf. |
| Odwulf | English | Wealthy wolf. |
| Ody | Anglo-Saxon | Wealthy defender. |
| Odysseus | Greek | full of wrath |
| Odön | Hungarian | keeper of the fief |
| Oedipus | Greek | Swollen foot. |
| Oegelsby | English | Fearsome. |
| Oeneus | Greek | King of Calydon. |
| Oengus | Irish | One vigor. |
| Oenomaus | Greek | Son of Ares. |
| Oetavian | Latin | Born eighth. |
| Ofer | Hebrew | Fawn. |
| Offa | Anglo-Saxon | Name of a king. |
| Ofydd | Welsh | Welsh form of Ovid 'a Roman poet'. |
| Og | Biblical | A cake, bread baked in ashes. |
