Santiago Atitlán is a municipality of Guatemala belonging to the department of Sololà. The municipal seat, with the same name, is located on the southwest shore of Lake Atitlan at an altitude of 1593 meters. Its economy is characterized by agriculture and the production and sale of handicrafts, as well as the commercialization of basic products. There is also an important hotel sector. It is the only municipality that has the name of Lago de Atitlán as a surname.