Siemianice [ɕɛmjaˈnit͡sɛ] is a village in the administrative district of Gmina Oborniki Śląskie, within Trzebnica County, Lower Silesian Voivodeship, in south-western Poland. It lies approximately 3 kilometres (2 mi) north of Oborniki Śląskie, 11 km (7 mi) west of Trzebnica, and 24 km (15 mi) north-west of the regional capital Wrocław.