| Code: | peo |
| Name: | Old Persian |
| URL Form: | old-persian |
| ISO 639-1: | |
| ISO 639-2: | peo |
| ISO 639-2-ALT: | |
| ISO 639-3: | peo |
| ISO 639-5: | |
| IETF BCP 47: | peo |
| Scope: | language |
| Dates: | 600-300 BC |
| Extinct: | yes |
| Constructed: | no |
| Glossary Link: | Old Persian |
| Wikipedia: | |
| Alt Names: | |
| Relevant Usage: | Old Persian; Persian Mythology; |
| Parent: | Iranian |
| Children: | |
| Ancestor: | |
| Descendants: | Pahlavi; |
| Description: | Old Persian was the language spoken in ancient Persia. |