1. Caspian Sea (Russia,Kazakhstan,Turkmenistan,Azerbaijan,Iran)
- Area: Approximately 371,000 square kilometers (143,244 square miles)
- Largest inland body of water on Earth, sometimes considered a sea due to its size and salinity.
2. Lake Superior (Canada, United States)
- Area: Approximately 82,103 square kilometers (31,700 square miles)
- Largest freshwater lake by surface area in the world. Part of the Great Lakes system in North America.
3. Lake Victoria (Kenya, Tanzania, Uganda)
- Area: Approximately 68,800 square kilometers (26,600 square miles)
- Largest lake in Africa and second largest freshwater lake by surface area in the world.
4. Lake Huron (Canada, United States)
- Area: Approximately 59,596 square kilometers (23,009 square miles)
- Second largest lake in the Great Lakes system and fourth largest freshwater lake by surface area globally.
5. Lake Michigan (United States)
- Area: Approximately 57,757 square kilometers (22,304 square miles)
- Third largest lake in the Great Lakes system and fifth largest freshwater lake by surface area in the world.
6. Lake Tanganyika (Burundi, Democratic Republic of the Congo, Tanzania, Zambia)
- Area: Approximately 32,900 square kilometers (12,700 square miles)
- Second deepest lake in the world (after Lake Baikal) and longest freshwater lake (by length). Located in the African Great Lakes region.
7. Lake Baikal (Russia)
- Area: Approximately 31,500 square kilometers (12,200 square miles)
- Deepest lake in the world, with a maximum depth of 1,642 meters (5,387 feet). Situated in southeastern Siberia, Russia.
8. Great Bear Lake (Canada)
- Area: Approximately 31,080 square kilometers (12,000 square miles)
- Fourth largest lake in Canada and eighth largest freshwater lake globally. Located in the Northwest Territories.
9. Lake Malawi (Malawi, Mozambique, Tanzania)
- Area: Approximately 30,044 square kilometers (11,600 square miles)
- Also known as Lake Nyasa, it is the third largest lake in Africa and ninth largest freshwater lake in the world.
10. Great Slave Lake (Canada)
- Area: Approximately 28,930 square kilometers (11,170 square miles)
- Fifth largest lake in Canada and tenth largest freshwater lake globally. Situated in the Northwest Territories.