The Poprad (Hungarian: Poprád, German: Popper) is a river in northern Slovakia and southern Poland, and a tributary of the Dunajec River near Stary Sącz, Poland. It has a length of 170 kilometres (63 km of which, are within the Polish borders, making it Poland's 22nd longest river) and a basin area of 2,077 km², (1,594 km² of which is in Slovakia, and 483 km² in Poland). Much of the Polish part of its basin is included in the protected area called Poprad Landscape Park featuring the Poprad River Gorge, a popular tourist destination between the towns of Piwniczna and Rytro.
Poprad is the only large Slovakian river flowing north into southern Poland. The Poprad flows through the Slovak administrative districts of Poprad, Kežmarok and Stará Ľubovňa and then forms for 31.1 km the Polish-Slovakian border.