The Carioca Aqueduct (Portuguese: Aqueduto da Carioca) is an aqueduct in the city of Rio de Janeiro, Brazil. The aqueduct was built in the middle of the 18th century to bring fresh water from the Carioca river to the population of the city. It is an impressive example of colonial architecture and engineering.
The Carioca Aqueduct is located in the centre of the city, in the Lapa neighbourhood, and is frequently called Arcos da Lapa (Lapa Arches) by Brazilian people. Since the end of the 19th century the aqueduct serves as a bridge for a popular tram that connects the city centre with the Santa Teresa neighbourhood uphill, the Santa Teresa Tramway.