Śmiardowo is a village in the administrative district of Gmina Sępopol, within Bartoszyce County, Warmian-Masurian Voivodeship, in northern Poland, close to the border with the Kaliningrad Oblast of Russia. It lies approximately 8 km south of Sępopol, 17 km east of Bartoszyce, and 59 km north-east of the regional capital Olsztyn. The Pełkowski Polish noble family lived in the village.