Segovia (/sɪˈɡoʊviə/ sig-OH-vee-ə, US also /seɪˈ-/ say-GOH-, Spanish: [seˈɣoβja]) is a city in the autonomous community of Castile and León, Spain. It is the capital and most populated municipality of the Province of Segovia. Segovia is in the Inner Plateau (Meseta central), near the northern slopes of the Sistema Central range and on a bend of the Eresma river.

The city is famous for its historic buildings including three main landmarks: its midtown Roman aqueduct, its cathedral (one of the last ones to be built in Europe following a Gothic style), and the medieval castle, which served as one of the templates for Walt Disney's Cinderella Castle. The city center was declared of World Heritage by UNESCO in 1985.

In 1985 the old city of Segovia and its Aqueduct were declared World Heritage Sites by UNESCO. The old city contains a multitude of historic buildings both civil and religious, including a large number of buildings of Jewish origin, notably within the old Jewish Quarter. One of the most historically important Jewish sites is the Jewish cemetery, El Pinarillo. Among the most important monuments in the city are:

• The Aqueduct of Segovia, located in Plaza del Azoguejo, is the defining historical feature of the city, dating from the late 1st or early 2nd century AD. Like a number of other aqueducts in Spain, Segovia's Roman-built aqueduct receives attention for being one of the “extraordinary engineering accomplishments” existing in the country, wrote Alejandro Lapunzina in Reference Guides to National Architecture: Architecture of Spain. It is still used to deliver drinking water. “The aqueduct of Segovia is – because of its long span, architectural beauty, uncharacteristic slenderness, and dramatic presence in the center of a dense urban fabric – the most impressive Roman structure in Spain, and one of the most famous among the numerous aqueducts built by the Romans throughout their vast Empire,” Lapunzina wrote. It consists of about 25,000 granite blocks held together without any mortar, and spans 818 meters with more than 170 arches, the highest being 29 metres high.

• The Alcazar of Segovia, the royal palace built on a stone peninsula between the rivers Eresma and Clamores, is documented for the first time in 1122, although it may have existed earlier. It was one of the favored residences of the kings of Castile, built in the transition from Romanesque architecture to Gothic and Mudéjar. The building is structured around two courtyards and has two towers, and a keep. It was a favourite residence of Alfonso X the Wise and Henry IV, and Isabella the Catholic was crowned Queen of Castile in Segovia's Plaza Mayor. Devastated by a fire in 1862, it was later rebuilt. It now houses the General Militar de Segovia archive and museum of the Royal School of Artillery, managed by the Board of the Alcazar.

• The Segovia Cathedral, the last Gothic cathedral built in Spain. It is considered a masterpiece of Basque-Castilian Gothic architecture and is known as "The Lady of Cathedrals." Juan Gil de Hontañón, Rodrigo Gil de Hontañón, and other masters of Spanish architecture worked on the construction. It was consecrated in 1768 and is 105 meters long, 50 metres wide and 33 m high in the nave, has 18 chapels and has three doors: El Perdón, San Frutos and San Geroteo.
  
  
• The Walls of Segovia existed when Alfonso VI of León and Castile retook the city from the Arabs. Alfonso had them enlarged, and also increased its perimeter to 3 kilometres, with eight towers, five gates, and several doors. It was built mainly of granite blocks but also reused gravestones from the old Roman necropolis. The wall encircles the historic quarter and currently has three gates: San Cebrián; Santiago, built in the Mudéjar style; and San Andrés, gateway to the Jewish quarter; and the breaches of Consuelo, San Juan, the Sun, and the Moon.