Copșa Mică (German: Kleinkopisch; Hungarian: Kiskapus) is a town in Sibiu County, Transylvania, Romania, located north of Sibiu, 33 km east of Blaj, and 12 km southwest of Mediaș.

Discovered in 1915 and developed by Romgaz, it began production in 1920 and produces natural gas and condensates.

On July 13, 1933, the biggest fire in the history of Romania occurred at a gas well here, with the flames reaching a height of 150 m (490 ft).

[4] The 1933 fire at the gas field led to the creation of a carbon black factory at Copșa Mică.

[5] This was due to the emissions of two factories in the area: The town's population of 5,201 (as of 2011) is significantly lower compared to its previous level in 1989, the year communism collapsed in Romania.