| Abbreviation | Definition |
|---|---|
| DNMSP | Driftnet Monitoring Support Program |
| DNO | Does Not Operate |
| DNP | Do Not Promote |
| DNR | Damn Near Russia |
| DNR | Display Non-nodal Routing |
| DNRA | Do Not Refer Again |
| DNS | Directorate of National Security |
| DNS | Domain Name System |
| DNS | Don't kNow Squat |
| DNS | Driver Night Sight |
| DNSIX | DOD Network Security for Information Exchange |
| DNSO | Defense Network Systems Organization |
| DNSS | Defense Navigation Satellite System |
| DNSS | efense Navigation Satellite System |
| DNT | Don't |
| DNU | Do Not Use |
| DNV | Deadly N Vital |
| DNV | Det Norske Veritas |
| DNVT | Digital Nonsecure Voice Terminal |
| DNVT | Digital Non-secure Voice Terminal |