Długie is a village in the administrative district of Gmina Wąpielsk, within Rypin County, Kuyavian-Pomeranian Voivodeship, in north-central Poland. It lies approximately 4 kilometres (2 mi) south-east of Wąpielsk, 10 km (6 mi) north-west of Rypin, and 49 km (30 mi) east of Toruń. It is situated on the eastern shore of Długie Lake in the Dobrzyń Land.