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The volcano Teide and Orotava Valley - view from Mirador La Crucita (Tenerife, Canary Islands)

Teide, or Mount Teide, is a volcano on Tenerife in the Canary Islands, Spain. Its summit (at 3,715 m (12,188 ft)) is the highest point in Spain and the highest point above sea level in the islands of the Atlantic.

If measured from the ocean floor, its height of 7,500 m (24,600 ft) makes Teide the third-highest volcano in the world, and is described by UNESCO and NASA as Earth's fourth-tallest volcanic structure. However, as Teide was formed just 170,000 years ago due to volcanic activity following a catastrophic landslide, Teide's base is actually situated in the Las Cañadas crater (the remains of an older, eroded, extinct volcano) at a height of around 2,190 m (7,190 ft) above sea level. Teide's elevation above sea level makes Tenerife the tenth highest island in the world.