| Name | Meaning | Gender | Origin |
|---|
| Jade | Jewel. Courageous and adoring.
| Female | Spanish |
| Juliet | youthful | Female | English |
| Juno | queen of the heavens | Female | Latin |
| Jupiter | Zeus, Father | Male | Roman |
| Kelvin | name of a river; from the narrow river | Male | Scottish |
| Kepler | | Unisex | Hebrew |
| Larissa | name of a city, mythical woman; cheerful one | Female | Ltin |
| Leda | happy | Female | Greek |
| Leonardo | Lion-bold. Leonardo da Vinci is considered by many to be the most brilliant and creative men who ever lived.
| Male | Italian |
| Luna | moon | Female | Latin |
| Lyra | lyre | Female | Greek |
| Marie | Bitter
| Female | |
| Mathilde | Mighty In Battle | Female | French |
| Metis | | Unisex | Hebrew |
| Miranda | Admirable
| Female | Latin |
| Nemesis | | Unisex | Hebrew |
| Neptune | | Male | |
| Newton | new town | Male | English |
| Nova | A star that suddenly becomes much brighter. | Female | Latin |
| Oberon | noble, bearlike | Male | English |
| 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 |
| Ophelia | Serpentine
| Female | Greek |
| Orion | Son of Fire
| Male | Greek |
| Pallas | wisdom | Female | Greek |