| Part of speech | proper name |
|---|---|
| Pronunciation | /nɛptjuːn/, /ˈnɛptʃuːn/ |
| Hyphenation | Nep·tune |
| Shavian alphabet | ·𐑯𐑧𐑐𐑑𐑿𐑯, ·𐑯𐑧𐑐𐑗𐑵𐑯 |
| Catalan | Neptú |
|---|---|
| Danish | Neptun |
| Dutch | Neptunus |
| Esperanto | Neptuno |
| French | Neptune |
| German | Neptun |
| Greek | Νεπτούνους |
| Italian | Nettuno |
| Scots | Neptune |
| Spanish | Neptuno |