| Abbreviation | Definition |
|---|---|
| IBCAT | International Board of Certified Athletic Therapists |
| IBDA | International Banknote Designers Association |
| IBEA | Indiana Business Education Association |
| IBFA | International Bubble Football Association |
| IBFA | International Buddhist Friends Association |
| IBFA | Irving Boys Football Association |
| IBIA | International Biometrics Identification Association |
| IBIA | International Brain Injury Association |
| IBIA | International Bunker Industry Association |
| IBIA | International Business Innovation Association |
| IBIDA | Illinois Branch of the International Dyslexia Association |
| IBITA | International Beauty Industry Trade Association |
| IBJA | India Bullion and Jewellers Association |
| IBJA | India Bullion Jewellers Association |
| IBJA | Indian Bullion Jewellers Association |
| IBJA | Indian Bullion Jewellery Association |
| IBOA | Intercity Bus Operators Association |
| IBOA | Intermountain Building Operators Association |
| IBRA | International Blokart Racing Association |
| IBRA | Italian Bamboo Rodmakers Association |