Wąsosz Dolny [ˈvɔ̃sɔʂ ˈdɔlnɨ] is a village in the administrative district of Gmina Popów, within Kłobuck County, Silesian Voivodeship, in southern Poland. It lies approximately 3 kilometres (2 mi) north-east of Popów, 15 km (9 mi) north of Kłobuck, and 89 km (55 mi) north of the regional capital Katowice.