Wasilew Szlachecki (Polish pronunciation: [vaˈɕilɛf ʂlaˈxɛtskʲi]) is a village in the administrative district of Gmina Repki, within Sokołów County, Masovian Voivodeship, in east-central Poland. It lies approximately 21 kilometres (13 mi) east of Sokołów Podlaski and 108 km (67 mi) east of Warsaw.