Africa:
- Nile River (Egypt and Sudan)
- Congo River (Democratic Republic of the Congo)
- Niger River (Mali, Niger, Benin, Nigeria)
- Zambezi River (Zambia, Zimbabwe, Mozambique)
- Orange River (South Africa and Namibia)
Asia:
- Yangtze River (China)
- Yellow River (China)
- Ganges River (India and Bangladesh)
- Indus River (China, India, and Pakistan)
- Mekong River (China, Laos, Myanmar, Thailand, Cambodia, and Vietnam)
Europe:
- Volga River (Russia)
- Danube River (Germany, Austria, Slovakia, Hungary, Croatia, Serbia, Romania, Bulgaria, Ukraine, and Moldova)
- Rhine River (Switzerland, Germany, France, Netherlands)
- Thames River (United Kingdom)
- Seine River (France)
- Po River (Italy)
North America:
- Mississippi River (United States)
- Missouri River (United States)
- Colorado River (United States and Mexico)
- Rio Grande (United States and Mexico)
- St. Lawrence River (Canada and United States)
- Mackenzie River (Canada)
South America:
- Amazon River (Brazil, Peru, and Colombia)
- Paraná River (Brazil, Argentina, and Paraguay)
- Orinoco River (Venezuela and Colombia)
- São Francisco River (Brazil)
- Magdalena River (Colombia)
Oceania:
- Murray River (Australia)
- Darling River (Australia)
- Sepik River (Papua New Guinea)
- Fly River (Papua New Guinea)
- Waikato River (New Zealand)
Please note that there are many other significant rivers that could be included for each continent. This list is not exhaustive and may differ based on individual interpretations and geographical classifications.