Poręba Dzierżna [pɔˈrɛmba ˈd͡ʑɛrʐna] is a village in the administrative district of Gmina Wolbrom, within Olkusz County, Lesser Poland Voivodeship, in southern Poland. It lies approximately 4 kilometres (2 mi) north of Wolbrom, 23 km (14 mi) north-east of Olkusz, and 43 km (27 mi) north of the regional capital Kraków.