| ISO 639-2/B | art-003 |
| peo | |
| ISO 639-3 | art-001 | peo |
| ISO 639-2/T | art-002 | peo |
| ISO 639-3 Reference Names | art-289 | Old Persian (ca. 600-400 B.C.) |
| ISO 639-3 Print Names | art-290 | Old Persian (ca. 600-400 B.C.) |
| ISO 639-3 Inverted Names | art-291 | Persian, Old (ca. 600-400 B.C.) |
| 普通话 | cmn-000 | 古波斯语 |
| Deutsch | deu-000 | Altpersisch |
| English | eng-000 | Old Persian |
| français | fra-000 | vieux perse |
| русский | rus-000 | староперсидский |
| español | spa-000 | persa antiguo |