Świdno [ˈɕfidnɔ] is a village in the administrative district of Gmina Mogielnica, within Grójec County, Masovian Voivodeship, in east-central Poland. It lies approximately 5 kilometres (3 mi) south-east of Mogielnica, 26 km (16 mi) south of Grójec, and 66 km (41 mi) south of Warsaw.