| ISO 639-1 | art-004 |
| lv | |
| ISO 639-3 | art-001 | lav |
| ISO 639-2/T | art-002 | lav |
| ISO 639-2/B | art-003 | lav |
| ISO 639-3 Reference Names | art-289 | Latvian |
| ISO 639-3 Print Names | art-290 | Latvian |
| ISO 639-3 Inverted Names | art-291 | Latvian |
| 普通话 | cmn-000 | 拉脱维亚语 |
| Deutsch | deu-000 | Lettisch |
| English | eng-000 | Latvian |
| français | fra-000 | letton |
| русский | rus-000 | латышский |
| español | spa-000 | letón |