Cząstkowice [t͡ʂɔ̃stkɔˈvʲit͡sɛ] is a village in the administrative district of Gmina Roźwienica, within Jarosław County, Subcarpathian Voivodeship, in south-eastern Poland. It lies approximately 12 kilometres (7 mi) south-west of Jarosław and 42 km (26 mi) east of the regional capital Rzeszów.