Żelazki [ʐɛˈlaski] is a village in the administrative district of Gmina Prostki, within Ełk County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 6 kilometres (4 mi) north of Prostki, 10 km (6 mi) south-east of Ełk, and 129 km (80 mi) east of the regional capital Olsztyn.