Zblęg [zblɛŋk] is a village in the administrative district of Gmina Osięciny, within Radziejów County, Kuyavian-Pomeranian Voivodeship, in north-central Poland. It lies approximately 6 kilometres (4 mi) east of Osięciny, 19 km (12 mi) east of Radziejów, and 48 km (30 mi) south of Toruń.