| ISO 639-2/T | art-002 |
| khm | |
| ISO 639-3 | art-001 | khm |
| ISO 639-2/B | art-003 | khm |
| ISO 639-1 | art-004 | km |
| ISO 639-3 Reference Names | art-289 | Khmer |
| ISO 639-3 Print Names | art-290 | Central Khmer |
| ISO 639-3 Print Names | art-290 | Khmer |
| ISO 639-3 Inverted Names | art-291 | Khmer |
| ISO 639-3 Inverted Names | art-291 | Khmer, Central |