Ciudad Vieja (Spanish pronunciation: [θjuˈðað ˈβjexa], Old City) is the historic city centre of Montevideo, the capital of Uruguay. Located in a peninsula at the mouth of the Bay of Montevideo it was founded in 1724 as a walled city by the Spanish Empire, after the independence of Uruguay the city rapidly grew outwards and the Ciudad Vieja remained as one of the central neighbourhoods, nowadays it serves as one of the main office districts of Montevideo, housing multiple banks and institutions, but also as one of the main tourist attractions in Uruguay due to its historical significance and neoclassical architecture.

Until 1829 it was surrounded by a wall that protected it from possible invasions. After the wall was torn down, the only part of it that was preserved was the main gateway to the Citadel, which remains to this day as an emblem of Montevideo. Some street names recall the presence of the wall, like Ciudadela (citadel) or Brecha (breach), which owns its name to the breach in the wall that the British managed to open to enter the city during the 1807 British invasion and brief occupation of the city before they were defeated.

The main street, Sarandí, was turned into a pedestrian walkway in 1992, which increased its commercial and tourist attractiveness. In 2005 it was extended beyond the Constitution Square.

Ciudad Vieja has elegant buildings from the colonial era and the first decades of independence. The Cabildo (built between 1804 and 1812), the Solís Theatre, the Metropolitan Cathedral, and several museums, like the Museo Torres García are among the most impressive ones. Also, several design shops and recycled loft floors flourish in the streets near the port.

• Bolsa de Valores de Montevideo
• Cabildo de Montevideo
• Mercado del Puerto
• Palacio Taranco
• Central Bank of Uruguay
• Solís Theatre
• Cathedral of the Immaculate Conception, St. Philip and St. James (head of the Roman Catholic Church in Uruguay)
• Parish Church of St. Francis of Assisi (Roman Catholic)
• Church of Our Lady of Lourdes and St. Vincent Pallotti (Roman Catholic, Pallottines)
• Cathedral of The Most Holy Trinity, popularly known as the English Temple (Anglican)
• Sephardic Jewish Community (Synagogue)

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  The Gateway of Ciudadela, was the entrance to the fortress of Montevideo
• 
  Street in the Ciudad Vieja

• Montevideo
• Colonia del Sacramento
• Barrios of Montevideo

• Assunção, Fernando O.; Bombet Franco, Iris (1991). Ciudad Vieja. Cuadernos del Boston (in Spanish). Vol. 1. Montevideo.{{cite book}}: CS1 maint: location missing publisher (link)

• Intendencia de Montevideo / Historia de la Ciudad Vieja
• Fotos of Ciudad Vieja
• History of Barrio Guruyú