Alboran Island (Spanish: Isla de Alborán) is a small islet of Spain (province of Almería) in the Alboran Sea, part of the western Mediterranean Sea, about 56 kilometres (35 mi; 30 nmi) north of the Moroccan coast and 85 kilometres (53 mi; 46 nmi) from the Spanish mainland.

The island is a flat platform about 15 metres (49 feet) above sea level and about 71,200 m2 (17.6 acres; 7.1 ha) in area.

100 m (328 ft) off the northeastern end of the island is the small islote de La Nube (literally, islet of the cloud).

The islet has been recognised as an Important Bird Area (IBA) by BirdLife International because it supports a breeding population of Audouin's gulls as well as various species of passerines on migration.

[2] The island became a power base of Mustafa ben Yusuf al Mahmud ed Din (Arabic: مصطفى بن يوسف المحمود الدين), a Tunisian corsair in the Ottoman sultan's service whose attacks were so ferocious that he became known as Al-Borani (hence the island's name), from the Turkish for "thunderstorm".