Starting with letter O
| # | Name | Origin | Gender | Save |
|---|---|---|---|---|
| Meaning | ||||
| 1 | O' | Irish | M | |
| Meaning: Descendent of. Irish surnames formed by prefacing O'. | ||||
| 2 | O'brian | Irish | M | |
| Meaning: Surname. | ||||
| 3 | O'brien | Irish | M | |
| Meaning: Surname. | ||||
| 4 | O'keefe | Irish | M | |
| Meaning: Surname. | ||||
| 5 | O'shay | Irish | M | |
| Meaning: Surname. | ||||
| 6 | O'shea | Irish | M | |
| Meaning: Surname. | ||||
| 7 | Oakden | English | M | |
| Meaning: From the oak tree valley. | ||||
| 8 | Oakes | English | M | |
| Meaning: From the oak. | ||||
| 9 | Oakley | English | M | |
| Meaning: From the oak - tree meadow. | ||||
| 10 | Oates | German | M | |
| Meaning: Variant of Odo: Wealth. | ||||
| 11 | Oba | Egyptian | M | |
| Meaning: King. | ||||
| 12 | Obadiah | Biblical | M | |
| Meaning: Servant of the Lord | ||||
| 13 | Obadiah | Hebrew | M | |
| Meaning: Servant/worshipper of the Lord. Obadiah was the prophet who wrote the shortest book in the Old Testament. | ||||
| 14 | Obal | Biblical | M | |
| Meaning: Inconvenience of old age. | ||||
| 15 | Obed | Biblical | M | |
| Meaning: A servant; workman | ||||
| 16 | Obed-edom | Biblical | M | |
| Meaning: Servant of Edom | ||||
| 17 | Obediah | Hebrew | M | |
| Meaning: Serves God. | ||||
| 18 | Oberon | English | M | |
| Meaning: In A Midsummer Night's Dream, Shakespeare altered the spelling to Auberon, king of the fairies, to Oberon. | ||||
| 19 | Oberon | German | M | |
| Meaning: Noble and bear-like. In a Midsummer Night's Dream, Shakespeare altered the spelling of Auberon (King of the fairies) to Oberon. | ||||
| 20 | Oberon | Shakespearean | M | |
| Meaning: A Midsummer Night's Dream' King of the Fairies. | ||||