Mostołty [mɔsˈtɔu̯tɨ] is a village in the administrative district of Gmina Ełk, within Ełk County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 11 kilometres (7 mi) south-west of Ełk and 115 km (71 mi) east of the regional capital Olsztyn.