Laurette Séjourné (1911 - May 25, 2003) was an archeologist and ethnologist. Born in France, in later life she became a naturalized Mexican citizen.

During the 1940s she worked for the INAH (Mexico's National Institute of Anthropology and History), excavating at Teotihuacan. She published several books on the cosmology and religion of the Nahua, including Burning Water: Thought and Religion in Ancient Mexico.

Her main work was on the figure of Quetzalcoatl. In addition, she maintained that Teotihuacan was the legendary Tollan.

Her work still is valued by specialists, but some were appalled when parts of her work were adopted by esoteric groups, searching for occult teachings of the pre-Hispanic religions. This is something that Séjourné never endorsed.

Her last years were dedicated to bring education to the Indian peoples of the south of Mexico.

She died at the age of 92.