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Old Prussian language

extinct Baltic language

Old Prussian is an extinct Baltic language. It was spoken by the indigenous peoples of Prussia, the Old Prussians. It was spoken in the area where north-eastern Poland and the Kaliningrad Oblast of Russia are today. It went extinct in the early 18th century. There has been an attempted revival, but with little progress.

RegionPrussia (region)
ExtinctEarly 18th century[1]
RevivalAttempted revival, with 50 L2 speakers (no date)[2]
Language codes
ISO 639-3prg
Idioma prusiano antiguo.png


  1. Prussian at Ethnologue (18th ed., 2015)
  2. Template:E16
  3. Hammarström, Harald; Forkel, Robert; Haspelmath, Martin, eds. (2017). "Prussian". Glottolog 3.0. Jena, Germany: Max Planck Institute for the Science of Human History.