Raymond J. DeMallie (October 16, 1946 – April 25, 2021) was an American anthropologist whose work focuses on the cultural history of the peoples of the Northern Plains, particularly the Lakota. His work is informed by interrelated archival, museum-based, and ethnographic research in a manner characteristic of the ethnohistorical method. In 1985 he founded and became the director of the American Indian Studies Research Institute at Indiana University Bloomington, alongside Douglas Parks, whom he worked collaboratively throughout majority of his career to preserve and translate various Indigenous languages, after having first met in 1980. Shortly after Parks started to work with DeMallie at Indiana University Bloomington. They got married in 2016.