Robert Jan van Pelt (born 15 August 1955) is a Dutch author, architectural historian, professor at the University of Waterloo and University of Toronto in Ontario and a Holocaust scholar. One of the world's leading experts on Auschwitz, he regularly speaks on Holocaust related topics, through which he has come to address Holocaust denial. He was an expert witness in Deborah Lipstadt's successful defence in the civil libel suit brought against her by David Irving.
van Pelt was born in Haarlem. At Leiden University, van Pelt obtained an undergraduate degree in art history and classical archaeology, a graduate degree in architectural history, and a PhD in the history of ideas. While pursuing his studies, he worked as an architectural historian, involved with the restoration of Noordeinde Palace in The Hague.
He joined the University of Waterloo in 1987 and has taught courses pertaining to the cultural history of the Middle Ages, the Renaissance and Enlightenment periods, the 19th century, and also participates in topics including urban history and film history.
He is currently Professor of Cultural History in the university's architectural faculty.
Van Pelt's Holocaust studies began while he was studying the Temple of Solomon under Renaissance scholar Frances Yates as part of his doctorate. He has stated that he was stunned when he first entered the Auschwitz architectural archive, commenting that the place allows one to imagine what the place looked like during the war and holds a "tactile reality" as to how the camp was built, and that here, he found his mission. His pursuit of Auschwitz as a point for architectural study arose when he nominated one of the crematoria and gas chamber complexes at Auschwitz-II Birkenau to be included in the University of Virginia architecture classes canon, a decision which he says was controversial among academics there. Van Pelt has also appeared in Errol Morris's Mr. Death: The Rise and Fall of Fred A. Leuchter, Jr., a documentary film about Fred Leuchter where he comments on and criticises Leuchter's methods and findings that constituted Leuchter's report for the defense of Ernst Zündel. In the film, van Pelt offers the analogy that the Nazis were the first Holocaust deniers, because through the obscure euphemisms and terminology they used in reference to their homicidal equipment, they attempted to deny to themselves what they were doing.