Šabac is a city and the administrative center of the Mačva District in western Serbia. It is situated along the Sava river, near the mountain Cer, in the region of Mačva.

The etymology of name Šabac is uncertain, although its resemblance to the name of the Sava River is suggestive. This name is in use since the end of the 15th century. In Serbian, the town is known as Šabac, in Turkish as Böğürdelen, in German as Schabatz, and in Hungarian as Szabács.

Prior to 1990, Šabac had one of the best developed economies in Yugoslavia. The main industries of Šabac today are agriculture, transportation and food production. Since 2000, some of the more important companies are diary plant Mlekara Šabac, Elixir Group, Zorka Pharma, and Hesteel Serbia Iron & Steel - Tin mill.