Prussian
A language of Poland
| Population | No estimate available. |
| Region | East Prussia, formerly in Germany. |
| Alternate names | Old Prussian |
| Dialects | Other extinct Baltic languages are: Selonian, Yotvingian, Semigallian, Curonian. |
| Classification | Indo-European, Baltic, Western |
| Language use | Became extinct around the beginning of the 18th century. Now there are efforts to reconstruct and revive the use. About 50 ethnic Prussians reportedly regularly use it. |
| Writing system | Latin script. |
| Comments | Second language only. |

