CIDG
| Acronym | Definition |
|---|---|
| CIDG | Criminal Investigation and Detection Group (Philipine National Police) |
| CIDG | Civilian Irregular Defense Group (South Vietnamese irregular military unit) |
| CIDG | Cochrane Infectious Diseases Group (est. 1994; Liverpool, England, UK) |
| CIDG | Critical Infrastructure Defense Group (Houston, TX) |