IWR Full Form. Full Meaning of IWR Find long form and abbreviation, slang or definition of IWR. What does IWR mean? What does IWR stand for? We are providing world largest and most comprehensive acronyms, names, abbreviations database directory on the Internet. Our data base contains more than 8,00,000 terms abbreviations and acronyms. You can also search unique terms more than 4,00,000 general Comprehensive words.