The Almolonga volcano, also called "Cerro Quemado" (Burned Mountain) or "La Muela" (The Molar) due to its distinct shape, is an andesitic stratovolcano in the south-western department of Quetzaltenango in Guatemala.

Part of the mountain range of the Sierra Madre, the volcano is located near the town of Almolonga, just south of Quetzaltenango, Guatemala's second largest city.

Almolonga stratovolcano is the oldest edifice and underwent collapse prior to the caldera forming eruption of Lake Atitlan, the major chronological marker of volcanism in the region.

The collapse of the stratovolcano left a caldera with a diameter of 3,3 km and a depth of 350m that was subsequently occupied by lava domes on its northern edge and covered by tephra layers from numerous volcanoes, both in the Almolonga field and others.

1818 an eruption formed a block lava flow over half a year that travelled 2.5 km eastward.