Sadłóg [ˈsadwuk] is a village in the administrative district of Gmina Topólka, within Radziejów County, Kuyavian-Pomeranian Voivodeship, in north-central Poland. It lies approximately 6 kilometres (4 mi) north of Topólka, 15 km (9 mi) south-east of Radziejów, and 53 km (33 mi) south of Toruń.