What is the largest lake in the world?

The largest lake in the world is the Caspian Sea. It has a surface area of 143,200 square miles. It is also the largest lake in the world by volume, containing 18,800 cubic miles of water. This oceanic lake is bordered by Russia, Iran, Kazakhstan, Turkmenistan and Azerbaijan.

Lake Superior is the world's largest freshwater lake by area. It is bordered by Canada and the United States, and has a surface area of 31,700 square miles. It is the second-largest freshwater or oceanic lake in the world by area.

Lake Baikal of Russia is the second largest lake in the world by volume. It is the largest freshwater lake in the world by volume. It holds 5,700 cubic miles of water.