Aidipsos (Greek: Αιδηψός) is a village and a former municipality in Euboea, Greece. The municipality Aidipsos was founded in 1997 by the merger of the municipality Loutra Aidipsou with the communities Agios and Gialtra. Since the 2011 local government reform it is part of the municipality Istiaia-Aidipsos, of which it is a municipal unit. 80 of Greece's 752 hot springs are located in Aidipsos, making it a popular tourist destination. The spas date back more than 20,000 years. The 2001 population was 6,670. Many famous personalities have visited the town so far, such as Lucius Cornelius Sulla, Sir Winston Churchill, Eleutherios Venizelos, Theodoros Deligiannis, Georgios Theotokis, Ioannis Kondilakis, Archbishop of Athens Theocletus I, Aristotelis Onassis, Maria Callas, Kostis Palamas, Marika Kotopouli and others.