Bad Berleburg is a town situated in the district of Siegen-Wittgenstein within the state of North Rhine-Westphalia, Germany. It is geographically positioned approximately 30 km (19 mi) northeast of Siegen and 35 km (22 mi) northwest of Marburg an der Lahn.
The town is notable for its significant size, ranking as one of the largest towns in Germany by land area.