Hatshepsut ( /hætˈʃɛpsʊt/; also Hatchepsut; meaning Foremost of Noble Ladies; 1508–1458 BC) was the fifth pharaoh of the eighteenth dynasty of Ancient Egypt. She is generally regarded by Egyptologists as one of the most successful pharaohs, reigning longer than any other woman of an indigenous Egyptian dynasty.^{[citation needed]}

Although contemporary records of her reign are documented in diverse ancient sources, Hatshepsut was described by early modern scholars as only having served as a co-regent from approximately 1479 to 1458 BC, during years seven to twenty-one of the reign previously identified as that of Thutmose III. Today Egyptologists generally agree that Hatshepsut assumed the position of pharaoh and the length of her reign usually is given as twenty-two years, since she was assigned a reign of twenty-one years and nine months by the third-century BC historian, Manetho, who had access to many historical records that now are lost. Her death is known to have occurred in 1458 BC, which implies that she became pharaoh circa 1479 BC.