| Abbreviation | Definition |
|---|---|
| CSGN | Coordinating SubGroup for Narcotics |
| CSGN | Cruiser Strike Guided-missile Nuclear |
| CSH | Combat Support Hospital |
| CSH | Counter Strike Homies |
| CSH(s) | combat support hospital(s) |
| CSI | Combat Studies Institute |
| CSI | Container Security Initiative |
| CSI | Critical Satellite Image |
| CSI | Critical Sustainability Item |
| CSIB | Combat Service Identification Badge |
| CSIF | Communications Service Industrial Fund |
| CSIF | Contractor Support for Initial Fielding |
| CSIOE | Common Support Items of Equipment |
| CSIP | Contract Support Integration Plan |
| CSIPG | Circuit Switch Interface Planning Guide |
| CSIR | Commanders Serious Incident Report |
| CSIS | Command Support Information System |
| CSL | Center for Strategic Leadership |
| CSL | Combat Stores List |
| CSL | Cooperative Security Location |