The Pielnica (Polish pronunciation: [pʲɛlˈɲitsa]; German: Pella or Piella 1419, Pielica 1441, Pielnyka 1512) is a river in South-Eastern Poland.

The Pielnica arises in the Carpathian Mountains near the peak Skibce, at an elevation of 776 metres, near on the Polish-Slovakian border.

Main Sections; Nowotaniec, Nadolaly, Nagórzany, Wola Sękowa, Odrzechowa, Pielnia, Długie, Besko.

The Pielnica valley must have been an important trade route and human settlement axis as early as 14th or 15th century.

Before World War II, the Pielnica and Osława line, was designated as the wild frontier between Poles and Lemkos.