Daroca city walls, Medieval city walls in Daroca, Spain.

The Wall of Daroca is a fortification in Daroca, Zaragoza, Spain. It runs about four kilometres with 116 towers, 14 of them large, and is built mostly of rammed earth (tapial), with some stretches reinforced with brick. It linked the Castillo Mayor with the castles of San Jorge and San Cristóbal, and its gates include the Puerta Baja, Puerta Alta, Portal de Valencia and Puerta de San Martín de la Parra.

The walls began in the 9th century and were later expanded significantly, especially in the 14th and 15th centuries. These expansions were driven by major conflicts that shook the region during that time.

The gates carry the marks of successive builders: the Puerta Baja was rebuilt in the 16th century with two square towers, the Puerta Alta was transformed in the 17th, and the Puerta de San Martín de la Parra shows Mudéjar brickwork. The Portal de Valencia has a sunroom added on top.

The wall runs about four kilometres around Daroca, linking the Castillo Mayor with the San Jorge and San Cristóbal hills, so the walk covers uneven ground and slopes. City officials estimated in 2022 that 64% of the wall is in poor condition, with parts already collapsed, most severely in the old Castillo Mayor section. Keep to marked paths and avoid damaged stretches.

The Muro de los Tres Guitarros, also called Torre de San Valero, has windows whose shape recalls a guitar. The Torre del Águila, raised during the War of the Two Peters, has since crumbled. City officials estimated in 2022 that 64% of the wall was in poor condition, with the Castillo Mayor section worst affected.