West Serbia () refers to the western part of central Serbia including the area between the Sava river in the north, the Kolubara, Ljig and DiÃÂina in the east, Western Pomoravlje and Stari Vlah in the south, and Drina in the west, encompassing roughly 6,500 square kilometres. The region is further divided into microregions such as MaÃÂva, Posavina, Podrinje, Pocerina, Valjevska Podgorina, Jadar, RaÃÂevina, Tamnava, Leà ¡nica and Azbukovica.
Another interpretation includes the southwestern part of central Serbia, including the Raà ¡ka macroregion (with Zlatibor).
There are different interpretations on the border of the region.
West Serbia is a communication- and transportation zone connecting central Serbia with Bosnia and Herzegovina, Montenegro and Croatia. During the Yugoslav era, it was a transit zone to all republics.
The relief is dominated by low and medium mountains: GuÃÂevo, Boranja, Jagodnja, Sokolske planine, Jablanik, Medvednik, Povlen, Maljen and Suvobor with Rajac. In Valjevska Podgorina, around LeliÃÂ and BaÃÂevac, karst relief appears in the form of holes, coves and caves. The PetniÃÂka Cave near Valjevo is famous.
The rivers in the region include Drina, Kolubara, Gradac, Jadar and other smaller rivers. There are hot springs in limestone terrains. Zvornik Lake is a lake created by damming the Drina, and the water is used to produce electricity in the Zvornik hydroelectric plant. The most famous thermal mineral springs are in Banja KoviljaÃÂa, Banja Vrujca and Banja Badanja.
Most of the rural settlements are of the scattered type, except in MaÃÂva. Valjevo and à  abac are larger towns, while smaller include Loznica, Mali Zvornik, Krupanj, Koceljeva, Bogatiàand Ljubovija. Valjevo, with 60,000 inhabitants, located by the Kolubara, is the largest urban settlement and an important cultural, educational and industrial center of the region, with a developed food and chemical industry, as well as defense industry. à  abac with 55,000 inhabitants, located by the Sava, is the center of the chemical, pharmaceutical and food industry. Loznica with 20,000 inhabitants, located by the à  tira, is an important cultural and economic center of the picturesque Jadar, known for its historical viscose industry.
Neolithic remnants were found in Tekerià ¡. The region has a history of urban settlements in the Roman, medieval and Ottoman periods. The Roman settlement of Gensis existed in the area of Loznica, on the route from Sirmium to ad Drinum. The northwestern part of present-day central Serbia was known in the 14th century during the reign of King Stefan Dragutin as Syrmia, however, from that time on, it was no longer known as such. In the mid-15th century Krupanj and ZajaÃÂa were known as Serbian Despotate mines.
West Serbia was an operational zone of the Yugoslav Partisans in World War II. It was the primary area of the 1941 uprising.