Cathedral Hill, Frombork in the context of "Cathedral in Frombork"

Warmia (Polish: Warmia [ˈvarmja] ; Latin: Varmia, Warmia; German: Ermland; Warmian: Warńija; Old Prussian: Wārmi) is both a historical and an ethnographic region in northern Poland, forming part of historical Prussia. Its historic capitals were Frombork and Lidzbark Warmiński and the largest city is Olsztyn.

Warmia is currently the core of the Warmian-Masurian Voivodeship (province). The region covers an area of around 4,500 km (1,700 sq mi) and has approximately 350,000 inhabitants. Important landmarks include the Cathedral Hill in Frombork, the bishops' castles at Olsztyn and Lidzbark, the medieval town of Reszel and the sanctuary in Gietrzwałd, a site of Marian apparitions. Geographically, it is an area of many lakes and lies at the upper Łyna river and on the right bank of Pasłęka, stretching in the northwest to the Vistula Bay. Warmia has a number of architectural monuments ranging from Gothic, Renaissance and Baroque to Classicism, Historicism and Art Nouveau.