Gmina Potok Wielki is a rural gmina (administrative district) in Janów Lubelski County, Lublin Voivodeship, in eastern Poland. Its seat is the village of Potok Wielki, which lies approximately 17 kilometres (11 mi) north-west of Janów Lubelski and 57 km (35 mi) south-west of the regional capital Lublin.

The gmina covers an area of 98.33 square kilometres (38.0 sq mi), and as of 2006 its total population is 4,954 (4,819 in 2013).

Gmina Potok Wielki contains the villages and settlements of Dąbrowica, Dąbrówka, Kolonia Potok Wielki, Maliniec, Osinki, Osówek, Popielarnia, Potoczek, Potok Wielki, Potok Wielki Drugi, Potok-Stany, Potok-Stany Kolonia, Radwanówka, Stany Nowe, Stawki, Wola Potocka and Zarajec Potocki.

Gmina Potok Wielki is bordered by the gminas of Modliborzyce, Pysznica, Szastarka, Trzydnik Duży and Zaklików.

• Polish official population figures 2006