IAR may refer to:
*
IAR Systems, an embedded system technology company
*The
Institute of Asian Research, an institute under the Faculty of Arts in the University of British Columbia, Vancouver, BC, Canada
*"
Ignore all rules", a policy on Wikipedia
*
Industria Aeronautică Română (IAR Braşov), an aerospace manufacturer
*
M27 Infantry Automatic Rifle, a new weapon design commissioned by the U.S. Marine Corps
*
Institute of Advanced Research, a private university in Gujarat, India
*
Instruction address register, an alternative name for the program counter CPU register
*
International Authority for the Ruhr, an organization in control of the industry in the Ruhr area from 1949 to 1952
*
International Affairs Review, an academic journal in the field of international affairs
*
Informacyjna Agencja Radiowa, a Polish news agency
*The IATA code for the
Tunoshna Airport, Yaroslavl Oblast, Russia
*.iar, Inventory ARchive file used for avatar inventory backup in
OpenSimulator virtual environments
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