| Name | Meaning | Gender | Origin |
|---|
| 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 |
| Nipper | A small boy | Unisex | |
| Nugget | as in Chicken | Unisex | |
| 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 |
| Pablo | Little. Form of Paul.
| Male | Spanish |
| Paget | Attendant
| Male | |
| Pastel | | Unisex | |
| Pea | | Unisex | Hebrew |
| Peanut | Edible nuts eaten raw or roasted. | Unisex | |
| Pebble | | Unisex | |
| Pebbles | after the character in 'The Flintstones' cartoons | Male | |
| Peeper | | Male | Hebrew |
| Peewee | | Unisex | |
| Peppy | | Male | |
| Peso | | Unisex | Hebrew |
| Picasso | | Male | |
| Pickles | Food flavored in a solution of vinegar | Unisex | |