Stefan Karagiosov (Bulgarian: Стефан Карагьозов) was an industrialist and philanthropist from Tarnovo, which for virtually all his life was in the Ottoman Empire.
In 1861 Stefan Karagiosov built the first silk factory in Tarnovo with his business partner Doino Vichenti from Bergamo (Italy).
In 1869 Doino Vichenti left Bulgaria and Stefan Karagiosov became the only owner of the two factories in Tarnovo and Gabrovo.
Using the scraps of food from the mill and bread alcohol company, Stefan Karagiosov fattened 250 – 300 animals per year.
Stefan Karagiosov donated a lot of money for different charity organizations, schools, churches and monasteries in Tarnovo and the region.