| Abbreviation | Definition |
|---|---|
| SMMW | ubmillimeter Wave |
| SMN | Servicio Marítimo Nacional |
| SMN | Swiss Military Net |
| SMO | Senior Medical Officer |
| SMO | Senior Meteorological and Oceanographic Officer |
| SMO | Special Management Office |
| SMO | Strategic Mobility Office(R) |
| SMO | Support to Military Operations |
| SMOE | Surreptitious Methods of Entry |
| SMOM | Sovereign Military Order of Malta |
| SMOOM | Sovereign Military Order Of Malta |
| SMOOS | Shipboard Meteorological and Oceanographic Observing System |
| SMOTJ | Sovereign Military Order of the Temple of Jerusalem |
| SMP | Simultaneous Membership Program |
| SMP | Single Marine Program |
| SMP | Sub-Motor Pool |
| SMPC | Strategic Military Partner Conference |
| SMPT | School of Military Packaging Technology |
| SMQ | Shipboard Receiving meteorological data terminal |
| SMR | Source Maintenance and Recoverability |