Iglesia de San Pedro Apóstol, Late Gothic church in Arcos de la Frontera, Spain.

Iglesia de San Pedro Apóstol is a late Gothic church in Arcos de la Frontera featuring a single nave, six lateral chapels, and a polygonal apse. The interior is dominated by a substantial 16th-century retablo that serves as the focal point of the sacred space.

The church is a late Gothic building whose main structure dates from the 16th century; the tower-facade was begun in 1728 by Manuel Gómez to designs by Diego Antonio Díaz. After the 1755 Lisbon earthquake, the bell stage was rebuilt from 1759 under the Sevillian architect Pedro de Silva. The first chapels flanking the nave were finished in the first half of the 17th century.

The Sagrario chapel, built in the 17th and 18th centuries at the foot of the Epistle nave, holds retables and images from the circle of sculptor Pedro Duque Cornejo. The first chapels flanking the nave, finished in the first half of the 17th century, form a kind of transept.

Only the Gospel-side doorway is usable, reached through the ground floor of the tower-facade; the other two portals are closed. The tower rises in three stages—portal, balcony and bell chamber—crowned by a clock and an espadaña. Look up at the paired columns and double niches flanking the entrance before going in.

The Del Perdón chapel was founded in 1502 by the Ayllón family to commemorate the 1483 Battle of the Guadalete, in which the town's alcaide Juan Ayllón defeated the Muslims. The flags taken in that battle still hang in the chapel, above an 18th-century altarpiece and a 16th-century Plateresque relief of the Last Supper.