The Sahrawi Arab Democratic Republic, also known as the Sahrawi Republic and Western Sahara, is a partially recognized state, recognized by 46 UN member states and South Ossetia, located in the western Maghreb, which claims the non-self-governing territory of Western Sahara, but controls only the easternmost one-fifth of that territory. Between 1884 and 1975, Western Sahara was known as Spanish Sahara, a Spanish colony. The SADR is one of the two African states in which Spanish is a significant language, the other being Equatorial Guinea.

Spanish Sahara, officially the Spanish Possessions in the Sahara from 1884 to 1958, then Province of the Sahara between 1958 and 1976, was the name used for the modern territory of Western Sahara when it was occupied and ruled by Spain between 1884 and 1976. It had been one of the most recent acquisitions, as well as one of the last remaining holdings, of the Spanish Empire, which had once extended from the Americas to the Spanish East Indies.