| ISO 639-3 | art-001 |
| jpn | |
| ISO 639-2/T | art-002 | jpn |
| ISO 639-2/B | art-003 | jpn |
| ISO 639-1 | art-004 | ja |
| ISO 639-3 Reference Names | art-289 | Japanese |
| ISO 639-3 Print Names | art-290 | Japanese |
| ISO 639-3 Inverted Names | art-291 | Japanese |
| Ethnologue Primary Language Names | art-323 | Japanese |
| Glottolog Languoid Names | art-326 | Nuclear Japanese |
| Glottocode | art-327 | nucl1643 |
| Glottolog Primary Key | art-328 | 34850 |
| Ethnologue Language Names | art-330 | Eastern Japanese |
| Ethnologue Language Names | art-330 | Japanese |
| Ethnologue Language Names | art-330 | Western Japanese |
| Ethnologue Language Names | art-330 | Zu-zu-ben |
| 普通话 | cmn-000 | 日语 |
| Deutsch | deu-000 | Japanisch |
| English | eng-000 | Japanese |
| français | fra-000 | japonais |
| 日本語 | jpn-000 | 日本語 |
| русский | rus-000 | японский |
| español | spa-000 | japonés |