Zaranj District (Balochi: , Dari: ) is a district of Nimruz Province, Afghanistan, containing the provincial capital city of Zaranj.
Route 606 connects Zaranj to Delaram which helps the Trade, and the toll-customs revenues have grown.
Zaranj has a hot desert climate (Köppen climate classification BWh) with very hot summers and cool winters. Precipitation is very low and mostly falls in winter. Temperatures in summer may approach 50 ðC (122 ðF). Snowfall in Zaranj is a rare event. On 27 November 2016, it snowed in this city.
In 2004, Zaranj had a population of 49,851 people in 242 villages. The population was given as Baloch 44%, Pashtun 34% and Tajik 22%.
Per a 2007 report from the Ministry of Rural Rehabilitation and Development, the district grows maize, wheat, melon, watermelon, millet and lentil.