Largo de São Francisco da Prainha, also known as Largo da Prainha, is a square located in the Saúde neighborhood of Rio de Janeiro. It used to be a small beach called Prainha before the construction of the Rio de Janeiro Port.

This is another great spot to visit for experiencing local, authentic nightlife in Rio. There are a lot of bars around the square and during the night, there is often live music playing around and a lot of people hanging out. It's a very laid-back vibe.