Žabalj is a town and municipality located in the South Bačka District of the autonomous province of Vojvodina, Serbia. In 2023 the town Žabalj has a population of 9,107 and the municipality Žabalj has a population of 25,777. It is located in southeastern part of Bačka, known as Šajkaška. All settlements in the municipality have an ethnic Serb majority.

The South Bačka District is one of seven administrative districts of the autonomous province of Vojvodina, Serbia. Geographically it lies in the southern part of Bačka and northern part of Syrmia. According to the 2022 census results, it has a population of 607,178 inhabitants. The administrative center of the district is the city of Novi Sad, which is also the capital and the largest city of the Autonomous Province of Vojvodina.