Kucbork [ˈkut͡sbɔrk] (German: Kutzburg) is a village in the administrative district of Gmina Wielbark, within Szczytno County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 5 kilometres (3 mi) north-west of Wielbark, 16 km (10 mi) south of Szczytno, and 48 km (30 mi) south-east of the regional capital Olsztyn.

The village has a population of 280.