The Isla de Tagomago is a private island off the east coast of Ibiza belonging to Spain.
The etymology is likely tagomago 'rock magician' in reference to Mago Barca, Carthaginian general Hannibal's brother. In the Muslim era was known as Taj Umayu.
It has 1,525 m long and 113 m wide. The island is rocky, with a port and a lighthouse to the west in the extreme southeast. Tagomago lighthouse was built in 1913 and is a landmark in the shipping routes from Ibiza to Palma de Mallorca and Barcelona. It is 86.3 m above sea level, and its height is 20.4 m.
The island is owned by German real estate entrepreneur Matthias Kühn, Norma Duval current partner, and has a small tourist facility within which politicians and celebrities frequently visit.