BR-116 is a federal route of highways of Brazil and the longest highway in the country, with 4,542 km (2,822 mi) of extension. The road connect Fortaleza, Ceará, one of the largest Northeast Brazil metropolises, to the southern city of Jaguarão, Rio Grande do Sul, in the border with Uruguay. It is also the longest highway in the country to be completely paved. It is considered one of the most important highways in the country, along with BR-101.

The Brazilian Highway System is a network of trunk roads administered by the Ministry of Transport of Brazil. It is constructed, managed and maintained by the National Department of Transport Infrastructure (DNIT), federal agency linked to the Ministry of Infrastructure, and the public works departments of state governments.