Which organ removes the largest amount of excess water from the body?

The organ that removes the largest amount of excess water from the body is the kidney. The kidney is responsible for regulating the water content in the blood by filtering waste products and excess water from the blood, which is then excreted in the form of urine. The kidneys are able to filter and remove large amounts of excess water, which helps to maintain the body's fluid balance and prevent dehydration. While the liver, lungs, and skin all play important roles in maintaining the body's overall health, they do not remove as much excess water from the body as the kidneys do.