The name of the largest river in South America is the Amazon River. It is approximately 4,345 miles long and flows through several countries, including Peru, Colombia, and Brazil, before emptying into the Atlantic Ocean. The Amazon is also notable for its vast rainforest, which is home to an incredible diversity of ecosystems and wildlife. The river discharges more water than any other river in the world, contributing significantly to global freshwater resources. The Amazon basin plays a crucial role in regulating the Earth's climate and is vital for indigenous communities and the wider environment.