Słup [swup] is a village in the administrative district of Gmina Parysów, within Garwolin County, Masovian Voivodeship, in east-central Poland. It lies approximately 3 kilometres (2 mi) east of Parysów, 10 km (6 mi) north-east of Garwolin, and 57 km (35 mi) south-east of Warsaw.