A slave market is a place where slaves are bought and sold. Such markets became a key phenomenon in the history of slavery, particularly in the Arab slave trade and the interregional slave trade of the United States.
In the Ottoman Empire during the mid-14th century, slaves were traded in special marketplaces called "Esir" or "Yesir" that were located in most towns and cities. It is said that Sultan Mehmed II "the Conqueror" established the first Ottoman slave market in Constantinople in the 1460s, probably where the former Byzantine slave market had stood. According to Nicolas de Nicolay, there were slaves of all ages and both sexes, they were displayed naked to be thoroughly checked by possible buyers.
In Somalia, the inhabiting Bantus are descended from Bantu groups that had settled in Southeast Africa after the initial expansion from Nigeria/Cameroon, and whose members were later captured and sold into the Arab slave trade. From 1800 to 1890, between 25,000–50,000 Bantu slaves are thought to have been sold from the slave market of Zanzibar to the Somali coast. Most of the slaves were from the Majindo, Makua, Nyasa, Yao, Zalama, Zaramo and Zigua ethnic groups of Tanzania, Mozambique and Malawi. Collectively, these Bantu groups are known as Mushunguli, which is a term taken from Mzigula, the Zigua tribe's word for "people" (the word holds multiple implied meanings including "worker", "foreigner", and "slave"). Bantu adult and children slaves (referred to collectively as jareer by their Somali masters) were purchased in the slave market exclusively to do undesirable work on plantation grounds.
Enslaved Africans were sold in the towns of the Arab World. In 1416, al-Maqrizi told how pilgrims coming from Takrur (near the Senegal River) had brought 1,700 slaves with them to Mecca. In North Africa, the main slave markets were in Morocco, Algiers, Tripoli and Cairo. Sales were held in public places or in souks.