| Name | Meaning | Gender | Origin |
|---|
| Nacho | Small triangles of tortilla topped with cheese. | Male | Word |
| Nadia | hope | Female | Russian |
| Nash | cliff | Male | English |
| Nelly | Abbreviation of Eleanor shining light.
| Male | English |
| Nemo | from the glen | Male | Greek |
| Nibbles | | Unisex | |
| Niblet | | Male | |
| Nikki | Victorious People | Unisex | English |
| Niles | son of Neil | Male | Scandinavian |
| Nina | Girl
| Female | Russian |
| Nipper | A small boy | Unisex | |
| Nova | A star that suddenly becomes much brighter. | Female | Latin |
| Nugget | as in Chicken | Unisex | |
| Ondine | little wave | Female | Latin |
| Opal | Australian gemstone of remarkable colours, usually red, blue or green | Female | Sanskrit |
| Opal | Australian gemstone of remarkable colours, usually red, blue or green | Female | Sanskrit |
| Oreo | American cookie brand consisting of two chocolate wafers with white cream filling. | Male | |
| Oreo | American cookie brand consisting of two chocolate wafers with white cream filling. | Male | |
| Orion | Son of Fire
| Male | Greek |
| Orson | Little bear
| Male | Latin |
| Pabla | Little
| Female | |
| Pablo | Little. Form of Paul.
| Male | Spanish |
| Paget | Attendant
| Male | |
| Paris | Brand of perfume. | Female | |
| Pastel | | Unisex | |