Pirdop (Bulgarian: Пирдоп) is a town located in South-West Bulgaria of Sofia Province in the southeastern part of the Zlatitsa - Pirdop Valley at 670 m above sea level. It is surrounded by the Balkan Range (also known as the Stara Planina) to the north, Sredna Gora Mountain to the south, and Koznitsa and Galabets saddles to the east and west, respectively. The town has a population of 8,040.
The main economic activity is non-ferrous metallurgy. The Pirdop copper smelter and refinery is the biggest in the Balkans and whole of South-Eastern Europe. It was privatized in 1997 for $80,000,000  and is now owned by the German Aurubis. It has a capacity of 160,000 tons and additional capacity of 180,000 tons worth €82,000,000 is being built. The factory also produces 830,000 tons of sulphuric acid and employs 1,420 workers. The main chimney of the factory is 325 metres tall and shares together with the chimneys of Maritza East Power Stations the title of tallest man-made objects of Bulgaria. 
Pirdop is a centre of a small municipality with 9,460 inhabitants. The territory of the municipality is crossed by main road I -6 Sofia - Bourgas, which is a part of the Republican road network, as well as by the Sub-Balkan railway line to Bourgas. The municipality consists of municipal center town of Pirdop and the village of Dushantsi. The town is the center of tourist routes to the Balkan Range and Sredna Gora Mountain. There are some mountain huts conveniently located and equipped for visits. There are convenient roads leading to Doushantsi Dam Lake, Koufarita Bridge, the localities of Borova Gora, Bobyovitsa, Elensko and Kazanite, and others. Doushantsi Dam Lake on the Topolnitsa River is one of the most beautiful mountainous water reservoirs in Bulgaria. Although the accommodation facilities are insufficient, there are good opportunities for short vacations for recreation and sports fishing. There are also good conditions for water sports and attractions.
- "Политическа икономия на раздържавяването в България". Retrieved 2007-03-16.
- "Pirdop Aurubis Med". Retrieved 2007-01-03.