Afro-Turks are Turkish people of African Zanj descent, who trace their origin to the Ottoman slave trade like the Afro-Abkhazians. Afro-Turk population is estimated to be between 5,000 and 20,000 people. Afro-Turks are distinct from African immigrants in Turkey, which number around 1.5 million individuals as of 2017 according to state-owned Anadolu Agency.

Slavery in the Ottoman Empire was a major institution and a significant part of the Ottoman Empire's economy and traditional society. The main sources of slaves were wars and politically organized enslavement expeditions in the Caucasus, Eastern Europe, Southern Europe, Southeast Europe, and Africa. It has been reported that the selling price of slaves decreased after large military operations. In Constantinople, the administrative and political center of the Ottoman Empire, about a fifth of the 16th- and 17th-century population consisted of slaves. Statistics of these centuries suggest that Istanbul's additional slave imports from the Black Sea slave trade have totaled around 2.5 million from 1453 to 1700.