| Acronym | Definition |
|---|
| JLB | Journal of Law & Business (New York University) |
| JLB | Jointless Band |
| JLB | Jorge Luis Borges (Argentinian author) |
| JLB | Just Like Before (band) |
| JLB | Jack Linebacker (football) |
| JLB | James Labrie (Dream Theater vocalist) |
| JLB | Japan Labor Bulletin (Japan Institute of Labor) |
| JLB | Junior League of Baltimore |
| JLB | Junior League of Boston |
| JLB | Junior League of Brooklyn |
| JLB | Junior League of Birmingham |
| JLB | Junior League of Buffalo |
| JLB | Junior League of Bakersfield |
| JLB | Jewish Lads Brigade |
| JLB | Joint Logistics Board |
| JLB | Junior League of Boise |
| JLB | Junior League Baseball |
| JLB | Junior League of Bronxville |
| JLB | Junior League of Binghamton |
| JLB | Junior League of Bristol |
| JLB | James Lance Bass (NSYNC) |
| JLB | Juventudes Libertarias de Bolivia (Spanish: Libertarian Youth of Bolivia) |