Peter Jan Margry (born April 6, 1956) is a Dutch historian and European ethnologist who works at the University of Amsterdam and, since 1993, also at the Royal Netherlands Academy of Arts and Sciences research center Meertens Institute in the Netherlands.  Previously, he worked in The Hague and Den Bosch where he held positions as archivist-researcher, historian and archival inspector successively at the Dutch National Archives, the Court of Audit (Netherlands) and the Province of North Brabant