Županja (pronounced [ʒǔpaɲa], Hungarian: Zsupanya, German: Schaupanie) is a town in eastern Slavonia, Croatia, located 254 km east of Zagreb.

The A3 highway Zagreb-Slavonski Brod-Belgrade passes north of it, and the city is also reachable by a local railroad from Vinkovci as well as the state road D55.

[9] Županja was ruled by Ottoman Empire between 1536 and 1687 as part of Sanjak of Syrmia.

Since the Treaty of Karlowitz in 1699, until 1918, Županja (named ZUPANJE when a post-office was opened in 1861)[10] remained in the Austrian monarchy (Kingdom of Croatia-Slavonia after the compromise of 1867), in the Slavonian Military Frontier, under the administration of the Brooder Grenz-Infanterie-Regiment N°VII until 1881.

In the late 19th and early 20th century, Županja was a district capital in the Kingdom Syrmia County.