Świdnik [ˈɕfʲidɲik] (German: Streckenbach) is a village in the administrative district of Gmina Marciszów, within Kamienna Góra County, Lower Silesian Voivodeship, in south-western Poland.
It lies approximately 9 kilometres (6 mi) north-west of Kamienna Góra, and 78 kilometres (48 mi) west of the regional capital Wrocław.