| Abbreviation | Definition |
|---|---|
| SMCT | Soldier's Manual of Common Tasks |
| SMD | Something Must Die |
| SMD | Standard Military Drawing |
| SMD | Strategic Missile Defense |
| SMD | Surface Mount Device |
| SMDC | Space & Missile Defense Command |
| SMDC | Space & Missile Defense Command (Army) |
| SMDC | Space and Missile Defense Command |
| SMDC/ARSTRAT | United States Army Space and Missile Defense Command/United States Army Forces Strategic Command |
| SMDG | Standoff Mine Detection Ground |
| SMDR | Station Message Detail Record |
| SMDR | Structure & Manning Decision Review |
| SMDR | Structured Manning Decision Review |
| SMDT | Space and Missile Defense Technologies |
| SME | Significant Military Equipment |
| SMEB | Significant Military Exercise Brief |
| SMEC | Single Module Engine Controller |
| SMEO | Small End Office |
| SMERF | Social Military Education Religious And Fraternal |
| SMERF | Social Military Educational Religious And Fraternal |