| Acronym | Definition |
|---|
| IBR➣Income Based Repayment (Federal student loans) |
| IBR➣Incorporated By Reference |
| IBR➣Infectious Bovine Rhinotracheitis |
| IBR➣Image-Based Rendering |
| IBR➣International Business Report (various companies) |
| IBR➣Integrated Baseline Review |
| IBR➣Intelligent Broadcast Reduction |
| IBR➣Internet Broadband Router |
| IBR➣Iron Butt Rally (Iron Butt Association motorcycle event) |
| IBR➣Institute of Behavioral Research |
| IBR➣Incident-Based Reporting (crime statistics reporting to replace the UCR) |
| IBR➣International Bear Rendezvous |
| IBR➣International Bio Recovery (Corporation; North Vancouver, BC, Canada) |
| IBR➣Incremental Borrowing Rate |
| IBR➣Independent Business Review (unbiased analysis) |
| IBR➣Indian Boiler Regulation (Act) |
| IBR➣Institute for Biblical Research |
| IBR➣Independent Bird Register (UK) |
| IBR➣Integrally Bladed Rotor (jet engine part) |
| IBR➣Intelligence Broadcast Receiver |
| IBR➣Install Base Report (Symantec) |
| IBR➣Industrie Bilance Riunite (Italian: Industry Balance Cases; Italy) |
| IBR➣Inclusion Body Rhinitis |
| IBR➣International Benchmarking Review (UK and Ireland) |
| IBR➣Initial Baseline Review |
| IBR➣Internet Background Radiation |
| IBR➣Investment Balance Review |
| IBR➣Inverted Box Rib (building material) |
| IBR➣It's Been Real |
| IBR➣Innovation and Business Relations |
| IBR➣In-Band Request |
| IBR➣Institute of Byzantine Research (Athens, Greece) |
| IBR➣Internal Baseline Review |
| IBR➣Investment Budget Review |
| IBR➣Installation Business Reform |
| IBR➣Inappropriate Behavior Referral |
| IBR➣Internal Budget Review |
| IBR➣Intra-Base Radio |
| IBR➣International Bull Riding |
| IBR➣Interstate Background Research, Inc. (pre-employment screening; Elfers, FL) |
| IBR➣Independent Bank Review |