| Abbreviation | Definition |
|---|---|
| JBGI | Jimmy Bruno Guitar Institute |
| JBI | Jacob Blaustein Institute |
| JBI | Jamaica Bauxite Institute |
| JBI | Jewish Braille Institute |
| JBI | Joanna Briggs Institute |
| JCI | Japan Concrete Institute |
| JCI | Japanese Cultural Institute |
| JCID | Journal of the Christian Institute on Disability |
| JCIE | Journal of the Chinese Institute of Engineers |
| JCII | Japan Camera Industry Institute |
| JCIT | John Costanza Institute of Technology |
| JCPI | Japan Church Planting Institute |
| JCRI | Jefferson Clinical Research Institute |
| JCTI | James Cairns Training Institute |
| JCVI | J Craig Venter Institute |
| JCVI | J. Craig Venter Institute |
| JDI | Jayhawk Debate Institute |
| JDIET | Jawaharlal Darda Institute of Engineering and Technology |
| JDIET | Jawaharlal Darda Institute of Engineering Technology |
| JEI | Jones Eye Institute |