The Parana River is one of the longest and most iconic waterways in South America, stretching over 4,800 kilometers from Brazil to Argentina. This mighty river is known by many other names and synonyms, depending on the region and dialect. In Brazil and Paraguay, it is commonly referred to as Rio Paraná, while in Argentina it may be called Río Paraná or simply Paraná. Other synonymous terms include the Paraguay River, which joins the Paraná in Argentina, and the Upper Paraná River, which refers specifically to the section of the river that runs through Brazil. Regardless of the name, the Parana River remains a vital source of transportation, commerce, and recreation for the people of South America.