Street names in Barcelona
The odonyms of Barcelona — meaning the street names in Barcelona along with the names of thoroughfares and other roads in the city — are regulated by the Ponència de Nomenclàtor dels Carrers de Barcelona, a commission under the Department of Culture of the Barcelona City Council. These names have changed over time, reflecting the various historical, social, political, economic, and cultural events that have taken place in the city.
Source: Wikipedia — Street names in Barcelona (CC BY-SA 4.0)