Olvera is a town in the province of Cádiz, Andalusia, Spain.

At the tip of the "White towns route", the city of Olvera is in the province of Cádiz, in the northwest of the Serranía Gaditana area, near the borders of the provinces of Seville and Mílaga.

The distance between the capital and the Olvera is 139 km (86 mi). The number of inhabitants, according to the INE of 2005, is 8,585, although the number of "Olvereños" is possibly greater as migration to the coast (specifically to the Costa de la Luz) in search of employment where individuals decided to change their address to their place of work.

The hills surrounding Olvera are full of olive groves that are said to provide the best extraction of olive oils in Andalusia. In fact, the town is said to be surrounded by over 2 million olive trees. In recent years it has received the award of the "Denominación de Origen de la Sierra de Cádiz", which is a standard that is recognised by participants including nearby towns of Setenil, Algonodales, Alcalá del Valle, Torre Al-Haquime etc. While olive groves are of great importance to the economy, the largest economic source of this colourful town is the "cooperative" and the prize "Arco Iris" of 1989 was won due to the town having the greatest number of cooperatives per inhabitant.

Of great interest within the municipality is a large colony of Andalusian griffon vultures (Gyps fulvus) to be found within the natural reserve of the "Peñon de Zaframagón", a huge rock outcrop that is located 14 km to the northwest of the town centre.

Places of interest include:

The main monument of this city is itself. A phrase that exemplifies this reality is "OLVERA is a street, a churchand a castle, BUT what a street, what a church and what a castle!", for that reason Olvera was declared "A Protected Area of Artistic and Historical Importance" in 1983.

Dominating the area, like the top of a pyramid, is Parroquia de Nuestra Señora de la Encarnación (the Parish of Our Lady of the Incarnation) next to the Arabic Castle: it is the vertex of a white expanse of houses amongst olive groves. This church, in neoclassic style, was built by the orders of the Duke of Osuña in 1822 (which created a debt with the Olvera township by not investing the taxes in the improvement of the town) on the foundations of a small gothic - mudéjar (Andalucian Moorish) style church (conserving and incorporating a small baptismal room), which in turn was built on the foundations of an Arabic mosque. The work was finished in 1843, culminating in one of the greatest churches of the province, with dimensions worthy of cathedral. In 1936 republican revolutionaries burnt some of the icons and images along with the interior during the Spanish Civil War. In the interior are several frescos, stained glass windows of great value and images of the different phases of the death of Christ can be found, among them a Crucified Christ from the 16th century, discovered 15 years ago in the cellars of the building. The last restoration started in 1994 being closed to the congregation until the conclusion of works at the end of the 1999. At present the greater church of Olvera is again closed, due to a fire lasting 15 hours of an image/statue in September 2004, leaving the sacred place in lamentable condition. It is hoped that the necessary money will soon be obtained to reopen the church.

As it stands, the Arab Castle was constructed at the end of the 12th century, mostly in the 13th, on a strategic rock, giving the ability to communicate with other nearby castles through signals (e.g. reflecting light with mirrors). Its structure was created deliberately to disadvantage enemy to the maximum.

There exists seven buttresses that support the Moorish Wall, demolition of some of the wall has emphasized the "Cilla", which served as a jail and a ducal barn, amongst other uses. Today it is a tourist office and a municipal museum, comprising four display rooms and a patio with a majestic view. In one of its rooms there is a permanent exhibition on "the Castles and Strengths of the Nazarí Kingdoms".

La Villa District - Near these other buildings, in the "Casco Antigüo" (the ancient town center) within the old town walls is la villa (the village). To walk its streets is to travel 700 years back, to when an older Olvera existed. This was where the Visigoth town called Wubira existed. The towns origins are evident here, (narrow streets, strategic corners, old cottages, etc.), exposing the visitor to the old architecture of the Muslim town entwined with the modern.

The Plaza de Andalusia, also called "La Alameda" (tree lined area), has a majestic stone fountain/waterfall constructed in 2004. Above this is el Peñón del Sagrado Corazón de Jesús (the Rock of the Sacred Heart of Jesus), a great rock garden full of ivy, flowers, birds and animals. The reason for its name is the Christ statue, with arms raised, on the highest part of the rock carved by Jose Even Navas, in 1929.

El Santuario de Nuestra Señora de Los Remedios (The Sanctuary of Our Lady of the Remedies) is 2 km from the town centre. It was constructed in the 18th century, in Andalucian style on the foundations of a small hermitage. It venerates the patron of the locality, Nuestra Señora de Los Remedios, who is loved by the town of Olvera and many towns around, known collectively as "las cientos sierras" (the 100 mountain ranges). Unknown persons created an original statue to her during the 16th century, which was restored 10 years ago. The head of the statue is in poor condition as the galleries became infested with termites for more than a century, however, the best possible restoration has been applied to it. The Archbishop of Seville, Don Good Jose Maria Monreal, was crowned here in 1966.

El Monasterio de Caño Santos - Located 7 km from Olvera, it was constructed in 1542. For many years it was the seat of the old patrona of the city, the Holy virgin of Caño, an image kept by the local Franciscan friars who inhabited the interior. In 1835 they were expelled and the monastery confiscated and abandoned. After many years, when the building was all but lost, the council of Andalusia decided to restore it. Although the monument is within the municipality of Olvera, this monastery is property of the city council of Alcala del Valle.