The Tower of Hercules (Galician and Spanish: Torre de Hércules) is an ancient Roman lighthouse in Spain. It is on a peninsula about 2.4 kilometers (1.5 mi) from the centre of A Coruña, Galicia.

The tower is a National Monument of Spain. Since June 27, 2009, it has been a UNESCO World Heritage Site. It is the second tallest lighthouse in Spain, after the Faro de Chipiona.

The Tower of Hercules was one of 100 finalists for the 12 Treasures of Spain in 2007.