Zanzibar (from Arabic: ??????? Zanjibar; from Persian: ??????? Zangibar'Coast of Blacks'; zangi [black-skinned] + bar [coast]) is a semi-autonomous part of Tanzania in East Africa. It is composed of the Zanzibar Archipelago in the Indian Ocean; 25-50 kilometres (16-31 mi) off the coast of the mainland; and consists of numerous small islands and two large ones: Unguja (the main island; referred to informally as Zanzibar); and Pemba.

The capital of Zanzibar; located on the island of Unguja; is Zanzibar City. Its historic centre; known as Stone Town; is a World Heritage Site and is claimed to be the only functioning ancient town in East Africa.

Zanzibar's main industries are spices; raffia; and tourism. In particular; the islands produce cloves; nutmeg; cinnamon; and black pepper. For this reason; the islands; together with Tanzania's Mafia Island; are sometimes called the Spice Islands (a term also associated with the Maluku Islands in Indonesia).