| Name | Meaning | Gender | Origin |
|---|
| Noodle | A narrow ribbon-like strip of dough | Unisex | |
| Noodles | | Male | |
| Nougat | | Unisex | |
| Nugget | as in Chicken | Unisex | |
| Nutmeg | | Male | |
| Oj | Short for orange juice. | Male | |
| Okra | | Unisex | Hebrew |
| Old Yeller | | Unisex | Hebrew |
| Oleander | | Unisex | |
| Oleo | | Unisex | Hebrew |
| Oliver | The olive tree. The biblical olive tree symbolizes fruitfulness and beauty and dignity. Extending an olive branch signifies an offer of peace.
| Male | Latin |
| Ollie | Latin, olive tree | Male | English |
| Opie | | Unisex | |
| Opus | | Male | Hebrew |
| Orville | Gold town.
| Male | |
| Oscar | God's spear.
| Male | English |
| Otto | Born eighth or wealthy
| Male | |
| Owen | Young fighter
| Male | Welsh |
| Ozzy | From Osbert - Divinely bright warrior. | Male | |
| Pancake | | Unisex | |
| Paprika | Spicy powder made from sweet red peppers. | Unisex | |
| Peanut | Edible nuts eaten raw or roasted. | Unisex | |
| Pekoe | after orange pekoe tea | Unisex | |
| Pepsi | Brand of cola soft drink. | Male | |
| Perry | French form of Peter
| Male | English |