| Acronym | Definition |
|---|
| IWB➣Inside the Waistband (firearm holster) |
| IWB➣Industriellen Werke Basel (German: Basel Industrial Works; Basel, Switzerland) |
| IWB➣Interactive White Board (teaching aid) |
| IWB➣Inside Waist Band (concealed carry holster) |
| IWB➣Internationale Wirtschafts-Briefe (German: International Economic Letters; journal) |
| IWB➣Internally Wired Bar |
| IWB➣In-Work Benefits |
| IWB➣Information Warfare Branch |
| IWB➣i-Wealthview Banking |
| IWB➣International Whistleblowers (New Zealand) |