| Acronym | Definition |
|---|
| IB➣Interface Bus |
| IB➣International Business (various organizations) |
| IB➣Ikonboard (web forum software) |
| IB➣International Baccalaureate |
| IB➣Introducing Broker |
| IB➣Information Bulletin |
| IB➣Intelligence Bureau (India, Pakistan) |
| IB➣Iberia (Spanish airlines) |
| IB➣Ibuprofen |
| IB➣Interactive Brokers LLC |
| IB➣Islas Baleares (Balearic Islands) |
| IB➣InfiniBand (I/O specification, formerly called System I/O) |
| IB➣Internet Business |
| IB➣I'm Back |
| IB➣Inboard |
| IB➣Interface Builder (Apple Computers) |
| IB➣In Bond |
| IB➣In Band |
| IB➣International Bank |
| IB➣Immunoblotting |
| IB➣International Bureau (FCC) |
| IB➣Indian Bank |
| IB➣Investment Banker |
| IB➣Ibidem (Latin: In the Same Place; IBID is more common) |
| IB➣Instruction Book |
| IB➣I'm Bored |
| IB➣Information Bureau |
| IB➣Inquiry Board |
| IB➣Interface Board |
| IB➣Ice Breaker |
| IB➣Input Buffer |
| IB➣Itsy-Bitsy |
| IB➣Inclusion Body |
| IB➣Infectious Bronchitis (poultry viral disease) |
| IB➣Industrial Base |
| IB➣International Boundary |
| IB➣Internet Bank |
| IB➣Invision Board (message board) |
| IB➣Isobar |
| IB➣Instituto Balseiro (Bariloche, Argentina) |
| IB➣Investigator's Brochure |
| IB➣Ice Block (gaming, World of Warcraft) |
| IB➣Individual Budgets (UK) |
| IB➣Idiot Box (band) |
| IB➣Intelligence Branch |
| IB➣Inhaled Budesonide |
| IB➣Intermediate Body |
| IB➣Initial Budget |
| IB➣Ik Bedoel (Dutch: I Mean) |
| IB➣Ithaca Bakery (Ithaca, NY) |
| IB➣Incline Bench (weight lifting) |
| IB➣Incendiary Bomb |
| IB➣Illinois Bell |
| IB➣Induction Brazing |
| IB➣Issue Book |
| IB➣Intrabursal |
| IB➣Invoice Book |
| IB➣Inner Bottom (Shipbuilding) |
| IB➣Inbye (mining) |
| IB➣Instruction Buffer |
| IB➣Interdit Bancaire (France) |
| IB➣Investment Bureau |
| IB➣Information Briefing |
| IB➣Independent Bottler (Scotch whisky) |
| IB➣Indicator Bit (ITU-T) |
| IB➣Interactive Broadcasting (Internet company) |
| IB➣Incest Baby |
| IB➣Industrial Brownhoist |
| IB➣Integrated Battlefield |
| IB➣Integration Backbone |
| IB➣Identification Beacon |
| IB➣Intermediate Break |
| IB➣International Bacheloriate |
| IB➣Initial Bath |
| IB➣Impact Burst |
| IB➣Directie Internationaal Beleid (Dutch: direction for international politics) |
| IB➣Import Bulletin |
| IB➣Irregular Billing |
| IB➣Information before Learning Task (online education) |