Osinki [ɔˈɕiŋki] is a village in the administrative district of Gmina Rzeczniów, within Lipsko County, Masovian Voivodeship, in east-central Poland. It lies approximately 5 kilometres (3 mi) north of Rzeczniów, 16 km (10 mi) west of Lipsko, and 120 km (75 mi) south of Warsaw.