Piotrowice [pjɔtrɔˈvit͡sɛ] (German: Groß Peterwitz) is a village in the administrative district of Gmina Kostomłoty, within Środa Śląska County, Lower Silesian Voivodeship, in south-western Poland. It lies approximately 6 kilometres (4 mi) east of Kostomłoty, 15 km (9 mi) south-east of Środa Śląska, and 27 km (17 mi) south-west of the regional capital Wrocław.