| ISO 639-2/B | art-003 |
| efi | |
| ISO 639-3 | art-001 | efi |
| ISO 639-2/T | art-002 | efi |
| ISO 639-3 Reference Names | art-289 | Efik |
| ISO 639-3 Print Names | art-290 | Efik |
| ISO 639-3 Inverted Names | art-291 | Efik |
| 普通话 | cmn-000 | 埃菲克语 |
| English | eng-000 | Efik |
| français | fra-000 | efik |
| русский | rus-000 | эфик |