Prefeitura da Cidade do Rio de Janeiro

The Prefeitura do Rio, also known as the Mayor of Rio de Janeiro or Prefeitura da Cidade do Rio de Janeiro, is the municipal government responsible for administering the city of Rio de Janeiro in Brazil. It delivers a wide range of public services to residents and businesses, including water and sanitation, public transportation, health clinics, primary education, urban planning, and tax collection. The organisation oversees the maintenance of streets, parks, and public facilities, and issues permits for construction and commercial activities. Through its various secretariats and agencies, it implements policies aimed at improving quality of life and fostering economic development within the municipality. It maintains an official website at prefeitura.rio and uses social media channels to communicate service updates and emergency alerts to the public. Its services are directed primarily at the population of Rio de Janeiro and the enterprises operating within its jurisdiction.

As the executive authority of the municipality, the Prefeitura do Rio holds regulatory powers over land use, zoning, and environmental standards, positioning it as a key player in urban governance and disaster response. Its role became especially visible during international events such as the 2016 Rio Olympics, when it coordinated security, infrastructure, and public information efforts alongside federal and Olympic bodies. The organisation has also faced notable cybersecurity challenges, including a 2022 attack that forced the temporary shutdown of online municipal services and a 2016 hacktivist campaign that disrupted government websites during the Games. Following each incident, officials reported the breaches to specialized law enforcement agencies and worked to restore operations while advising citizens to use alternative information channels. Structurally, the Prefeitura is not a private corporation but a public entity subordinate to the elected mayor and the municipal legislature, forming part of Brazil’s federative system of states and municipalities. It operates without a parent company or subsidiary structure, deriving its authority directly from the city charter and national legislation.