Kolno [ˈkɔlnɔ] is a village in Olsztyn County, Warmian-Masurian Voivodeship, in northern Poland.

It is the seat of the gmina (administrative district) called Gmina Kolno.

[1] It lies approximately 41 km (25 mi) north-east of the regional capital Olsztyn.

It is located in Warmia.

This Olsztyn County location article is a stub.