| Acronym | Definition |
|---|
| CDX | Central Data Exchange |
| CDX | Companion Dog Excellent (AKC Obedience Title) |
| CDX | Cd Changer |
| CDX | Compound Index |
| CDX | Compact Disc Extended |
| CDX | Corel Draw Compressed Drawing |
| CDX | Cross Domain Connectivity |
| CDX | Compact Digital Switch |
| CDX | Credit Default Swap Index (finance) |
| CDX | Community Development Exchange (UK community development organization) |
| CDX | Cyber-Defense Exercise |
| CDX | Commercial Data Exchange |
| CDX | Consiglio Dei Dieci (Venetian Republic secret service) |
| CDX | Cross-Domain Connectivity |
| CDX | Apa Rated Plywood Sheathing Exposure 1 (construction plywood) |
| CDX | Control and Direction Exercise |
| CDX | Counterdrug Executive Secretariat |
| CDX | CS ChemDraw Drawing (file extension) |