The Radomka is a river in central Poland and a left tributary of the Vistula river. It has a length of 98 km and a basin area of over 2000 km² (all in Poland). The river has its source in forests 4 km south from Przysucha. There is a retention reservoir, built in the valley of Pilica in Domaniów, which has the largest surface area of any lakes in Mazowsze Voivodeship (5 – 7 km²). It is also utilised for recreation purposes.
Cities:
Main tributaries: