Łasin  () is a town in Grudziądz County, Kuyavian-Pomeranian Voivodeship, Poland, with 3,271 inhabitants (2004). It is the seat of the gmina (administrative district) called Gmina Łasin.
Łasin  () is a municipality in Grudziądz County, Kuyavian-Pomeranian Voivodeship, Poland, with a population of 3,271 residents as of 2004. It functions as the central hub for the administrative district known as Gmina Łasin.