Olszewo [ɔlˈʂɛvɔ] is a village in the administrative district of Gmina Stare Juchy, within Ełk County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 3 kilometres (2 mi) west of Stare Juchy, 19 km (12 mi) north-west of Ełk, and 109 km (68 mi) east of the regional capital Olsztyn.