IBV may refer to:
Institute for Business Value, a unit of Innovation and Research wing of IBM Business Consulting. Independent BIOS vendor Infectious bronchitis virus, the cause of avian infectious bronchitis, an important poultry disease. Influenza B virus, the second most common cause of influenza ÍBV Vestmannaeyjar, an Icelandic football club Instituto de Biomecánica de Valencia, Valencia Institute of Biomechanics (Spain) Internationale Bibelforscher-Vereinigung, German Jehovah's Witnesses's association, suppressed by the Nazis Internationalen Berufsringer Verbandes, a German/Austrian professional wrestling promotion which later evolved into the Catch Wrestling Association