圣马科斯拉拉古纳是危地马拉的城镇，位于该国西南部，由索洛拉省负责管辖，面积12平方公里，海拔高度1,561米，2002年人口2,238，人口密度每平方公里186.5人。

San Marcos La Laguna is a village on the western shore of Lago Atitlán in the Sololá Department of Guatemala. The village is northwest of three volcanos Volcán San Pedro, Volcán Tolimán, and Volcán Atitlán. The village has an outdoor amphitheater and a few hostels. San Marcos connects to other lakeside communities by boat and a narrow road. The nearest city is Panajachel at the northern side of Lago Atitlán. The town sits at an elevation of 1,585 metres (5,200 ft); the lowest elevation is the lake shore at 1,562 metres (5,125 ft).