| Abbreviation | Definition |
|---|---|
| JHazMat | Journal of Hazardous Materials |
| JHMA | Johns Hopkins Medical Archive, Baltimore |
| JHygEpidemiolMicrobiolImmunol | Journal of Hygiene, Epidemiology, Microbiology, and Immunology (Prague) |
| JIB | Juridische Internet Bibliotheek |
| JIL | Joint Interpretation Library |
| JILL | Jack Intermediate Library Linker |
| JIndHyg | Journal of Industrial Hygiene |
| JIndHygToxicol | Journal of Industrial Hygiene and Toxicology |
| JISC | Joint Information System Committee |
| JJL | Jesse Jones Library |
| JJML | John Jermain Memorial Library |
| JLabClinMed | Journal of Laboratory and Clinical Medicine |
| JLC | Joint Libraries Committee |
| JLF | Joint Library Facility |
| JLG | Junior Library Guild |
| JLSR | Journal of Library Science and Research |
| JMLA | Journal of the Medical Library Association |
| JMPL | James Memorial Public Library |
| JMPL | Java Map Projection Library |
| JNE | Journal of Nursing Education |