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| High Prussian | |
|---|---|
| Hochpreußisch (Breslau(i)sch / Oberländisch) | |
| Native to | Poland, Germany |
| Region | historically Ermland, but also parts of West and East Prussia; today moribund and spoken among some Heimatvertriebene in Germany that were expelled after 1945 |
Early forms | |
| Language codes | |
| ISO 639-3 | – |
| Glottolog | high1271 |
High Prussian (German: Hochpreußisch) is a group of East Central German dialects in former East Prussia, in present-day Warmian-Masurian Voivodeship (Poland) and Kaliningrad Oblast (Russia). High Prussian developed in the 13th–15th centuries, brought in by German settlers mainly from Silesia and Thuringia, and was influenced by the Baltic Old Prussian language.