Borders of Brazil

Brazil is the largest country in South America and borders every country in South America with the exceptions of Chile and Ecuador. The borders of Brazil are the international borders that Brazil shares with neighbouring countries. Brazil has borders with ten different countries, totalling 16,885 kilometres (10,492 mi), making it the country with the third longest land border behind only China and Russia.

The lengths of the borders Brazil shares with different countries, running counter-clockwise around Brazil from French Guiana to Uruguay, are listed below:

Country	Length (km)	Bordering Brazilian states	Border features	Border crossings
French Guiana (overseas department of France)	730	Amapá	Oyapock	Oyapock River Bridge
Suriname	593	Amapá, Pará
Guyana	1606	Pará, Roraima
Venezuela	2200	Amazonas, Roraima
Colombia	1644	Amazonas	Japurá River, Apaporis River, Traíra River, Papurí River, Vaupés River, Içana River, Rio Cuiari
Peru	2995	Acre, Amazonas	Acre River, Javary River, Amazon River
Bolivia	3423	Acre, Mato Grosso, Mato Grosso do Sul, Rondônia	Paraguay River, Canal Tamengo, Mandioré Lake, Madeira River, Mamoré River, Abuna River, Acre River
Paraguay	1365	Mato Grosso do Sul, Paraná	Paraná River, Itaipu Lake, Apa River, Paraguay River	Friendship Bridge
Argentina	1261	Paraná, Rio Grande do Sul, Santa Catarina	Uruguay River, Pepiri-Guazu River, San Antonio River, Iguazu River, Iguazu Falls	Tancredo Neves Bridge, Paso de los Libres – Uruguaiana International Bridge
Uruguay	1068	Rio Grande do Sul	Chuí Stream, Lagoon Mirim, Jaguarão River, San Luis River, Quaraí River	Baron of Mauá International Bridge

Border disputes

With Bolivia

• Isla Suárez (Bolivian name), or Ilha de Guajará-mirim (Brazilian name), a river island on the Mamoré River is claimed by both Bolivia and Brazil.

With Uruguay

• A triangular region, named Rincão de Artigas in Portuguese, is claimed by both Uruguay and Brazil. The dispute is due to a disagreement as to which stream should be called Arroyo de la Invernada and form the official border between the two countries.
• Brazilian Island, a river island at the junction of the Quaraí River and the Uruguay River on the border between Argentina, Brazil, and Uruguay is claimed by both Uruguay and Brazil.