The Rio–Niterói Bridge (in Portuguese: Ponte Rio-Niterói), officially the President Costa e Silva Bridge, is a box girder bridge spanning the Guanabara Bay, connecting the cities of Rio de Janeiro and Niterói in the State of Rio de Janeiro, Brazil. It is currently the second longest bridge in Latin America, after the Metro Line 1 bridge, and the 48th longest in the world in 2020. From its completion in 1974 until 1985 it was the world's second-longest bridge, second only to the Lake Pontchartrain Causeway.

It is 13.29 kilometres (8.26 mi) long – 8.836 kilometres (5.490 mi) over water and the bridge's 300-metre (980 ft) central span is 72 metres (236 ft) high in order to allow the passage of hundreds of ships entering and leaving the bay every month. At the time it was completed, the central span was the longest box girder in the world; it has since been surpassed by the 301-metre (988 ft) main span of the Stolma Bridge (1998) and the 330-metre (1,080 ft) main span of the second Shibanpo Bridge (2006). It carries over 150,000 vehicles daily, which pay a toll only when entering Niterói of R$6.2 (US$1.15) as of May 2024. It has 18 access points and eight overpasses.

Officially, it is part of federal highway BR-101. From 1 June 1995, it was under the management of Ponte S.A. under a 20-year concession until 1 June 2015 since when Ecoponte has managed the bridge.