IWR

IWR may be:


 * Interactive Web Response, similar to Interactive Voice Response (IVR)
 * Intelligent word recognition
 * Iraq Resolution or Iraq War Resolution, enacted by the United States in 2002
 * Information World Review, an information industry trade newspaper
 * iShares Russell Midcap (ticker symbol IWR), an exchange-traded fund of U.S. stocks
 * Institute for Water Resources, part of the United States Army Corps of Engineers
 * Isle of Wight Railway
 * In-water recompression, a treatment for decompression sickness
 * Independent Wrestling Revolution, a company that promotes professional wrestling
 * The Interdisciplinary Center for Scientific Computing (in German: Interdisziplinäres Zentrum für wissenschaftliches Rechnen, short IWR), a scientific research institute of the University of Heidelberg, Germany.