Lagoa de Saquarema is a saltwater lagoon located in the municipality of Saquarema, in the state of Rio de Janeiro, Brazil, at approximately 22°55′S 42°32′W. It is a public recreational area with no entrance fees required to access the waterfront.

The lagoon is noted for its clear waters and is associated with an active fishing community. Permit, Atlantic croaker, and Ladyfish inhabit the lagoon, reflecting its saltwater, estuarine character. A prominent local landmark is the Ponte Darcy Bravo, a bridge that crosses or borders the lagoon and serves as a recognizable visual reference point on the water.

The town of Saquarema is reachable by bus from Rio de Janeiro, and local transport such as ride-share services or cycling can be used to reach specific points around the lagoon's perimeter. Weekday mornings offer the quietest conditions, with calmer water and fewer people compared to weekends or afternoons.

Nearby water bodies include Lagoa Jaconé to the east and Lagoa de Itaipu to the west, both within Rio de Janeiro state, which may be of interest for paddlers exploring the broader coastal lagoon system of this region.