Szczerzbowo [ʂt͡ʂɛʐˈbɔvɔ] is a village in the administrative district of Gmina Mrągowo, within Mrągowo County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 13 kilometres (8 mi) north-east of Mrągowo and 64 km (40 mi) east of the regional capital Olsztyn. In the 2021 Polish census, Szczerzbowo had a population of 185, a drop from the 2011 census where the population was 197.