Treaties signed by the Sultan of Zanzibar and the British to end the slave trade.

1. Treaty of Baluchistan (1873): This treaty was signed between Sultan Barghash bin Said of Zanzibar and the British government, represented by Sir Bartle Frere, to end the slave trade in the region. The treaty prohibited the export of slaves from Zanzibar and its territories, and established a system of inspections to ensure compliance.

2. Heligoland-Zanzibar Treaty (1890): This treaty was signed between Sultan Khalid bin Barghash of Zanzibar and the British government, represented by Sir Arthur Hardinge, to further strengthen the ban on the slave trade. The treaty granted Britain control over the island of Heligoland in exchange for British protection of Zanzibar's territorial integrity and continued efforts to suppress the slave trade.

These treaties played a significant role in curbing the slave trade in East Africa and marked a turning point in the relationship between Zanzibar and the British Empire.

- Treaty for the Suppression of the Slave Trade (1822)
- Treaty for the More Effectual Suppression of the Slave Trade (1845)
- Treaty of Commerce (1862)
- Treaty regarding the Slave Trade (1873)