Kleszczewo [klɛʂˈt͡ʂɛvɔ] is a village in the administrative district of Gmina Wieliczki, within Olecko County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 6 kilometres (4 mi) south of Wieliczki, 12 km (7 mi) south of Olecko, and 137 km (85 mi) east of the regional capital Olsztyn.