Jankowice [jankɔˈvit͡sɛ] is a village in the administrative district of Gmina Działdowo, within Działdowo County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 20 kilometres (12 mi) north of Działdowo and 50 km (31 mi) south-west of the regional capital Olsztyn.