Dąbrówno [dɔmˈbruvnɔ] is a village and the seat of a gmina (municipality) in Ostróda County, Warmian-Masurian Voivodeship in northern Poland. It lies approximately 30 kilometres (19 mi) south of Ostróda and 50 km (31 mi) south-west of the regional capital Olsztyn. It is located within the historic region of Masuria.

By the 13th century the Old Prussians had constructed a fort on a narrow between the Great and Little Dąbrowa lakes. Following the Prussian Crusade, the Teutonic Order began fortifying the area as Gilgenburg in 1316, and the developing settlement received its town charter in 1326. During the 15th century, it was repeatedly destroyed through warfare. In 1410, during the Polish–Lithuanian–Teutonic War, the town was captured by the Poles. In 1444, the town joined the anti-Teutonic Prussian Confederation, upon the request of which Polish King Casimir IV Jagiellon incorporated the region and town to the Kingdom of Poland in 1454. After the subsequent Thirteen Years' War, the longest of all Polish–Teutonic wars, the region and town became part of Poland as a fief held by the Teutonic Knights.

From the 18th century, the town was part of the Kingdom of Prussia, within which it was included in the Landkreis Osterode in Ostpreußen (Ostróda County) in 1818. In 1871, it also became part of Germany, within which it was located in the province of East Prussia. Despite being on the railway between Osterode (Ostróda) and Soldau (Działdowo), it remained a tiny town with no more than 1,000 residents. After the nearby town of Działdowo was reintegrated with the reborn Polish state following World War I, and thus separated from the province of East Prussia, Dąbrówno became the southernmost town of the Masurian Oberland and was cut off from its regional connections.

The town was heavily damaged during World War II, after which it became again part of Poland. Because much of its medieval layout still exists, including its church and part of its fortifications, Dąbrówno began to be reconstructed during the 1990s.

• Jerzy Skrodzki [pl] (1635–1682), Polish religious writer, translator and pastor
• Otto Brodde (1910-1982), German musician

• Official site (in Polish)