| Nikita | Earth; Ganges; From the mythological Greek Nike - goddess of victory.; Peoples victory.; Russian form of Nicholas victory of the people.; Victorious People |
| Nikki | Abbreviation of Nicole. Victory.; Abbreviation of Nicholas. Mythological Nike was Greek goddess of victory and root origin of Nicholas.; Derives From Nicole; In Greek mythology Nike was the goddess of victory.; Of the lord.; From the name NICOLE; Small; T |
| Nila | Blue.; Champion; Enchanting moon; From the Nile.; Olour |
| Nilani | Enchanting Moon |
| Nilima | A name meaning the blue of the sky. |
| Nimisha | Minute; Momentary; Twinkling of an eye |
| Nina | Beautiful eyes; Favor; grace. Variant of Ann or Anne: A variant of Hannah introduced to Britain in the 13th century.; Grace; Girl; Lovely; Lovely-eyed; Russian diminutive of the name Anne: favour; grace.; Strong |
| Ninian | St. Ninian was a 5th century bishop sent to Scotland to convert the Picts to Christianity. |
| Nirvana | State of perfect inner peace. |
| Nisa | A name meaning the quiet night. |
| Nisha | A beautiful name meaning the night. |
| Nishat | Liveliness. Energy.; A tree |
| Nishi | Alert; Getting stronger; West |
| Nishita | Someone who is very sharp. |
| Nissyen | Legendary son of Eurosswydd. |
| Nita | Bear (Choctaw); Dim. of JUANITA; God Is Giving; Grace; Moral; Moral, faithful; Serious; Well behaved |
| Noor | Light; Light; Angel |
| Noora | Variant of Nura: Light. |
| Nuha | Intelligence.; Intrelligence; Mind |
| Nusaybah | A name meaning a noble lineage. |
| Nusrat | Help; Victory. Help. |
| Nuzhat | Recreation. Amusement. |
| Nynnyaw | Legendary son of Beli. |
| Odgar | Legendary son of Aedd. |
| Ofydd | Welsh form of Ovid 'a Roman poet'. |
| OIwyna | White foot print. |
| Olivia | Feminine form of Oliver; of the olive tree; one who is peaceful; Olive; Peace - Of The Olive Tree; 'Twelfth Night', also called 'What You Will' A rich countess.; Variant of Olive: Olive: symbol of peace. |
| Olwina | White foot print. |
| Olwydd | One who walks the wild path. |
| Olwynn | A name meaning fair and holy. |
| Ondyaw | Legendary son of a French Duke. |
| Opal | Jewel.; Opal (precious stone). Jewel names became popular in the 19th century.; From the Opal Gemstone; Precious Gem; A treasured jewel; resembling the iridescent gemstone |
| Ophelia | Help. Serpentine. In Shakespeare's 'Hamlet', Ophelia was the lover of Hamlet who went insane as a result of his irrational behavior.; Helper; 'Hamlet, Prince of Denmark' Daughter to Polonius.; One who offers help to others; Serpentine |
| Orwel | A name meaning from the river spring. |
| Oswallt | Welsh form of Oswald 'strength from God'. |
| Owein | A variant meaning noble born. |
| Owena | A feminine form of noble born. |
| Owynn | Wellborn. Form of Ewan. |
| Padrig | Welsh form of Patrick 'noble'. |
| Pallavi | Bud; New leaves; Sprouting a young shoot |