Warmian–Masurian Voivodeship, also known as Warmia–Masuria Province and Warmia–Mazury Province, is a voivodeship (province) in northeastern Poland. Its capital and largest city is Olsztyn. The voivodeship has an area of 24,192 km2 (9,341 sq mi) and in 2019 had a population of 1,425,967.