| ISO 639-3 Inverted Names | art-291 |
| Sinhala | |
| ISO 639-3 | art-001 | sin |
| ISO 639-2/T | art-002 | sin |
| ISO 639-2/B | art-003 | sin |
| ISO 639-1 | art-004 | si |
| ISO 639-3 Reference Names | art-289 | Sinhala |
| ISO 639-3 Print Names | art-290 | Sinhala |
| ISO 639-3 Print Names | art-290 | Sinhalese |
| ISO 639-3 Inverted Names | art-291 | Sinhalese |