Wydrzno [ˈvɨdʐnɔ] is a village in the administrative district of Gmina Łasin, within Grudziądz County, Kuyavian-Pomeranian Voivodeship, in north-central Poland. It lies approximately 6 kilometres (4 mi) north of Łasin, 21 km (13 mi) north-east of Grudziądz, and 67 km (42 mi) north-east of Toruń.