Nysa is a city in southwestern Poland on the Eastern Neisse river, situated in the Opole Voivodeship. With 43,849 inhabitants (2019), it is the capital of Nysa County. It comprises the urban portion of the surrounding Gmina Nysa. Historically the city was part of Upper Silesia.

Opole Voivodeship, is the smallest and least populated voivodeship (province) of Poland. The province's name derives from that of the region's capital and largest city, Opole. It is part of Upper Silesia. A relatively large German minority lives in the voivodeship, and the German language is co-official in 28 communes.