Orr Dunkelman (Hebrew: אור דונקלמן) is an Israeli cryptographer and cryptanalyst, currently a professor at the University of Haifa Computer Science department.

[1][2] Dunkelman received all his degrees at the Technion - Israel Institute of Technology.

He received his Ph.D. degree at the age of 25, under the supervision of Eli Biham.

[3] Before joining the University of Haifa, Dunkelman held post-doctoral positions at KU Leuven, at École normale supérieure, and at the Weizmann Institute of Science.

[1] Among his contributions to cryptanalysis are: Dunkelman has taken part in the design of several new cryptographic primitives: Dunkelman received the Krill Prize from the Wolf Foundation in 2014, and papers he co-authored won the Best Paper Award at the Crypto conference (2012) and at the Fast Software Encryption (FSE) conference (2012).