Momia Juanita, also known as the Lady of Ampato, is the well-preserved frozen body of a girl from the Inca Empire who was killed as a human sacrifice to the Inca gods sometime between 1440 and 1480, when she was approximately 12–15 years old. She was discovered on the dormant stratovolcano Mount Ampato in 1995 by anthropologist Johan Reinhard and his Peruvian climbing partner, Miguel Zárate. She is known as the Lady of Ampato because she was found on top of Mount Ampato. Her other nickname, the Ice Maiden, derives from the cold conditions and freezing temperatures that preserved her body on Mount Ampato.

A mummy is a dead human or an animal whose soft tissues and organs have been preserved by either intentional or accidental exposure to chemicals, extreme cold, very low humidity, or lack of air, so that the recovered body does not decay further if kept in cool and dry conditions. Some authorities restrict the use of the term to bodies deliberately embalmed with chemicals, but the use of the word to cover accidentally desiccated bodies goes back to at least the early 17th century.