The Tangier International Zone was a 382 km2 (147 sq mi) international zone centered on the city of Tangier, Morocco, which existed from 1925 until its reintegration into independent Morocco in 1956, with interruption during the Spanish occupation of Tangier (1940–1945), and special economic status extended until early 1960. Surrounded on the land side by the Spanish protectorate in Morocco, it was governed under a unique and complex system that involved various European nations, the United States, and the Sultan of Morocco, himself under a French protectorate. Due to its status as international zone, Tangier played a crucial role for Moroccan Nationalists, who wanted independence, to establish (international) contacts and recruite allies as well as organising gatherings and events.

Tangier or Tangiers is a city in northwestern Morocco, on the coasts of the Mediterranean Sea and the Atlantic Ocean. The city is the capital of the Tanger-Tetouan-Al Hoceima region, as well as the Tangier-Assilah Prefecture of Morocco.