Szynwałd [ˈʂɨnvau̯t] is a village in the administrative district of Gmina Sośno, within Sępólno County, Kuyavian-Pomeranian Voivodeship, in north-central Poland. It lies approximately 5 kilometres (3 mi) west of Sośno, 10 km (6 mi) south-east of Sępólno Krajeńskie, and 40 km (25 mi) north-west of Bydgoszcz.