| 國語 | cmn-001 |
| 鎿 | |
| U+ | art-254 | 93BF |
| U+ | art-254 | 954E |
| 普通话 | cmn-000 | 镎 |
| Hànyǔ | cmn-003 | na2 |
| Hànyǔ | cmn-003 | ná |
| Deutsch | deu-000 | Neptunium |
| English | eng-000 | neptunium |
| русский | rus-000 | нептуний |
| 廣東話 | yue-000 | 鎿 |
| gwong2dung1 wa2 | yue-003 | laa4 |
| gwong2dung1 wa2 | yue-003 | naa4 |
| 广东话 | yue-004 | 镎 |