Valladolid (ə-/, Spanish: [baʎaðoˈlið](listen)) is a city in Spain and the de facto capital of the autonomous community of Castile and León. It has a population of 309,714 people (2013 est.), making it Spain's 13th most populous municipality and northwestern Spain's biggest city. Its metropolitan area ranks 20th in Spain with a population of 414,244 people in 23 municipalities.
The Old Town is made up of a variety of historic houses, palaces, churches, plazas, avenues and parks, and includes the National Museum of Sculpture, the Museum of Contemporary Art Patio Herreriano or the Oriental Museum, as well as the houses of Zorrilla and Cervantes which are open as museums. Among the events that are held each year in the city are the famous Holy Week, Valladolid International Film Week (Seminci), and the Festival of Theatre and Street Arts (TAC).
There is no direct evidence for the origin of the modern name of Valladolid. One widely held etymological theory suggests that the modern name Valladolid derives from the Celtiberian language expression Vallis Tolitum, meaning "valley of waters", referring to the confluence of rivers in the area. Another theory suggests that the name derives from the Arabic expression Balad al-Walid بلد الوليد, which means "city of al-Walid", referring to Al-Walid I. Yet a third claims that it derives from Vallis Olivetum, meaning "valley of the olives"; however, no olive trees are found in that terrain. Instead, in the south part of the city exist an innumerable amount of pine trees. The gastronomy reflect the importance of the piñon (pine nut) as a local product, not olives.
In texts from the middle ages the town is called Vallisoletum, meaning "sunny valley", and a person from the town is a Vallisoletano (male), o Vallisoletana (female).
The city is also popularly called Pucela, a nickname whose origin is not clear, but may refer to knights in the service of Joan of Arc, known as La Pucelle. Another theory is that Pucela comes from the fact that Pozzolana cement was sold there, the only city in Spain that sold it.