Amazon River, South America – 6,400 km (3,976 miles). Its the second longest river in the world and is by far the largest by water flow with an average discharge greater than the next seven largest rivers combined. read more
As a result, the length measurements of many rivers are only approximations (see also coastline paradox). In particular, there has long been disagreement as to whether the Nile or the Amazon is the world's longest river. read more
At the moment the second longest river in the world is the Amazon River in South America. The Amazon River is mostly located in Brazil, but is also located in Peru, Bolivia, Colombia, Ecuador, Venezuela, and Guyana in South America. read more