Ruciane-Nida is a town in Pisz County, Warmian-Masurian Voivodeship, Poland. The town was formed in 1966 by the merger of three smaller …Ruciane-Nida is a town in Pisz County, Warmian-Masurian Voivodeship, Poland. The town was formed in 1966 by the merger of three smaller settlements: Ruciane, Nida and Wola Ratajowa. It is located within the historic region of Masuria.