|Administrative region||East Macedonia and Thrace|
|• Municipality||481.8 km2 (186.0 sq mi)|
|• Municipal unit||419.0 km2 (161.8 sq mi)|
|• Municipality density||27/km2 (70/sq mi)|
|• Municipal unit||9,065|
|• Municipal unit density||22/km2 (56/sq mi)|
|• Population||3,553 (2011)|
|Time zone||UTC+2 (EET)|
|• Summer (DST)||UTC+3 (EEST)|
Prosotsani (Greek: Προσοτσάνη, until 1925: Greek: Προσωτσάνη - Prosotsani, from 1925 until 1940: Greek: Πυρσόπολις - Pyrsopolis) is a municipality and town within the municipality located in the western part of the Drama regional unit in Greece. The 2011 census reported a population of 9,065 inhabitants for the municipal unit, and 3,553 for the town. A local attraction is the cave at the source of the Angitis River, located at the village of Angitis in the community of Kokkinogeia.
Prosotsani is a historic town (and a former center of tobacco production) built on the foot of Menekio mountain. It was a sub-district in the Drama sanjak in the Selanik vilayet as "Pürsıçan" before the Balkan Wars.
The municipality Prosotsani was formed at the 2011 local government reform by the merger of the following 2 former municipalities, that became municipal units: