| ISO 639-3 Print Names | art-290 |
| Gikuyu | |
| ISO 639-3 | art-001 | kik |
| ISO 639-2/T | art-002 | kik |
| ISO 639-2/B | art-003 | kik |
| ISO 639-1 | art-004 | ki |
| ISO 639-3 Reference Names | art-289 | Kikuyu |
| ISO 639-3 Print Names | art-290 | Kikuyu |
| ISO 639-3 Inverted Names | art-291 | Gikuyu |
| ISO 639-3 Inverted Names | art-291 | Kikuyu |