Łysobyki [wɨsɔˈbɨki] is a village in the administrative district of Gmina Tłuszcz, within Wołomin County, Masovian Voivodeship, in east-central Poland. It lies approximately 2 kilometres (1 mi) south of Tłuszcz, 17 km (11 mi) north-east of Wołomin, and 38 km (24 mi) north-east of Warsaw.