| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 1121 | Nympha | Greek | Bride. | F | |
| 1122 | Nysa | Greek | Goal. | F | |
| 1123 | Nyse | Greek | Goal. | F | |
| 1124 | Nyssa | Greek | Goal. | F | |
| 1125 | Nyx | Greek | Night. | F | |
| 1126 | Obelia | Greek | Pointed pillar. | F | |
| 1127 | Obelie | Greek | Pointed pillar. | F | |
| 1128 | Oceana | Greek | Form of Oceanus. In Greek mythology Oceanus was a Titan father of rivers and water nymphs. | F | |
| 1129 | Ocypete | Greek | A Harpy. | F | |
| 1130 | Odele | Greek | Harmonious. | F | |
| 1131 | Odelet | Greek | Little singer. | F | |
| 1132 | Odelette | Greek | Little singer. | F | |
| 1133 | Odelle | Greek | Harmonious. | F | |
| 1134 | Odessa | Greek | Wrathful. | F | |
| 1135 | Odysseia | Greek | Wrathful. | F | |
| 1136 | Oenone | Greek | Lover of Paris. | F | |
| 1137 | Oighrig | Greek | Well spoken. | F | |
| 1138 | Oleisia | Greek | Protector of man. | F | |
| 1139 | Olena | Greek | Light. | F | |
| 1140 | Olexa | Greek | Defender of mankind. Feminine of Alexander. | F | |