Saharsa is one of the thirty-eight districts of Bihar, India. Saharsa town is the administrative headquarters of this district.
Saharsa district is a part of a larger territory, the Kosi Division and it became a district on 1 April 1954 and subsequently has become smaller with other districts being carved form it, most notably Madhepura in 1981. The area of the district is 1,696 km2. Total population is around 1132413 of which Rural population is 1052264 and Urban population is 80149. Saharsa district occupies an area of 1,687 square kilometres (651 sq mi), comparatively equivalent to Russia's Bering Island. Saharsa district is surrounded on the west by the river Kosi. Koshi boasts an abundance of fish and makhana. Saharsa is famous for its varieties of Mango's and Summer Berry known as Litchi.