Mark Lehner (born 1950 in Dakota) is an American archaeologist with more than 30 years of experience excavating in Egypt. He is the director of Ancient Egypt Research Associates (AERA) and has appeared in numerous television documentaries. His international team currently runs the Giza Plateau Mapping Project, excavating and mapping the ancient city of the builders of the Giza pyramid complex, which dates to the fourth dynasty of Egypt. He discovered that Pyramid G1-a, one of the subsidiary pyramids of the Great Pyramid, belonged to Hetepheres I; it was originally thought to belong to Queen Meritites I.