| Oswiu | A friend of the divine power. |
| Otave | One who brings great wealth. |
| Othmar | A name meaning famous for wealth. |
| Otho | A name meaning wealthy or rich. |
| OTIK | A name meaning small or little. |
| Otka | Fortunate heroine |
| Otoahhastis | Tall bull (Cheyenne) |
| Otugoma | King Warrior; Prince; Happiness; Strong; Superman; Hero; Excited |
| OUBASTET | myth name (cat) |
| Oushadhi | Plants with Healing Power |
| Ova | Derived from the Latin word for egg. |
| Ovee | Line; Small Prayer |
| Overdone | Measure for Measure' Mistress Overdone, a bawd. |
| Ovi | Holy message of marathi saint |
| Owen | A name meaning noble warrior. |
| Owi | Lines in Vedic Verse or Shloka |
| Oxnaleah | From the ox enclosure |
| Oyama | A person from the mountain. |
| Oz | A Hebrew name meaning strength. |
| Ozem | That fasts, their eagerness. |
| O`keefe | surname |
| O~keefe | Descendant of the noble Caoimhghin. |
| Paarai | A strong and solid rock formation. |
| Paaraj | One who is born from the earth. |
| Paasy | One of the kauravas |
| Paavana | Holy, Sacred, Freshness, Purity |
| Paavani | Purifier, Whose touch make you pure, Sacred |
| PAAVO | Finnish form of Paul (little) |
| Paawani | Honey, Lord Hanuman, True, Holy |
| Pachima | Coming from west |
| Pacifico | A name meaning the peaceful. |
| Padamabhu | Born of the Lotus |
| Paden | A name meaning royal or noble one. |
| Padhma | A name meaning a blooming lotus. |
| Padmabandhu | Friend of lotus (bee, sun) |
| Padmahasta | Lotus handed, Lord Krishna |
| Padmakalyani | A beautiful lotus flower. |
| Padmakar | Jewel, Lord Vishnu; Lake with lotuses |
| Padmalay | Dwelling in a Lotus; Lord Brahma |
| Padman | Lotus; Resembling the lotus |