JACG
| Acronym | Definition |
|---|---|
| JACG | Josserand Ace Consulting (web consulting firm; est. 1998; Estacada, OR) |
| JACG | Joint Aeronautical Commanders Group |
| JACG | Joint Asian Crime Group (Australian Federal Police) |
| JACG | Japanese Association for Crystal Growth (Japan) |
| JACG | Jersey Atari Computer Group (New Jersey; est. 1981) |