The largest organ in the human body is the skin.
It covers the entire outside of the body and protects internal tissues from injury, germs, and water loss. The skin also helps regulate body temperature and allows us to feel touch, pressure, heat, and cold.
In an average adult, the skin covers about two square metres and accounts for roughly 15% of total body weight.
A common alternative answer is the liver, but the liver is specifically the largest internal organ.
Therefore, the correct answer to the question as written is the skin.
