Miłusze [miˈwuʂɛ] is a village in the administrative district of Gmina Prostki, within Ełk County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 5 kilometres (3 mi) north-west of Prostki, 12 km (7 mi) south of Ełk, and 124 km (77 mi) east of the regional capital Olsztyn.
Before 1945 the area was part of Germany (East Prussia). In his youth, it was a favorite fishing spot for Otto von Bismarck.
Coordinates: 53°43′00″N 22°22′00″E / 53.7167°N 22.3667°E