András J. Riedlmayer (1947 â 9 February 2026) was an American art historian and librarian.
Riedlmayer was born in Budapest, Hungary, in 1947. He studied at the University of Chicago and at Princeton University, where he lectured in Ottoman history and Near Eastern Studies. He served as president of the Ottoman and Turkish Studies Association and as a member of the board of the Islamic Manuscript Association. He was director of the Documentation Center for Islamic Architecture of the Aga Khan Program at Harvard University's Fine Arts Library.
He was expert witness for the Prosecution on the systematic destruction of cultural heritage in Bosnia and Herzegovina in 1992 and 1996, and destruction of cultural heritage of Kosovo in 1999, at the International Criminal Tribunal for the former Yugoslavia in the trials of Slobodan Miloà ¡eviÃÂ, Vojislav à  eà ¡elj, and Radovan Karadà ¾iÃÂ. He was a founding member of the Bosnian Manuscript Ingathering Project, which worked to preserve the damaged materials at the Oriental Institute in Sarajevo.
Riedlmayer was interviewed as an expert in Tim Slade's 2016 documentary Destruction of Memory.
Riedlmayer died on 9 February 2026, at the age of 79.