| Name | Origin | Gender | Meaning | Rating | Cumulative |
| O' | Irish | male | Descendent of. Irish surnames formed by prefacing O'. | ||
| O'brian | Irish | male | Surname. | ||
| O'brien | Irish | male | Surname. | ||
| O'keefe | Irish | male | Surname. | ||
| O'shay | Irish | male | Surname. | ||
| O'shea | Irish | male | Surname. | ||
| Oakden | English | male | From the oak tree valley | ||
| Oakes | english | male | from the oak | ||
| Oakley | english | male | from the oak-tree meadow | ||
| Oakley | English | male | From the oak - tree meadow | ||
| Oana | romanian | female | meaning unknown | ||
| Oba | egyptian | male | king | ||
| Obadiah | Hebrew | male | Serves God | ||
| Obadiah, | hebrew | male | serves God | ||
| Obasi | african | male | Ibo of Nigeria name meaning "in honor of the supreme God." |
Showing 1 - 15 of 548 total results






