Grubno [ˈɡrubnɔ] is a village in the administrative district of Gmina Stolno, within Chełmno County, Kuyavian-Pomeranian Voivodeship, in north-central Poland. It lies 4 kilometres (2 mi) north-west of Stolno, 5 km (3 mi) south-east of Chełmno, 36 km (22 mi) north of Toruń, and 41 km (25 mi) north-east of Bydgoszcz. It is located in Chełmno Land within the historic region of Pomerania.

Grubno is located at the intersection of the Polish National road 91 and the Voivodeship road 550.