| Abbreviation | Definition |
|---|---|
| SPLLATM | Special Purpose Low Lethality Anti-Terrorist Munition |
| SPLM | Sudan People Liberation Movement |
| SPM | Security Program Manager |
| SPM | Self- Propelled Mount |
| SPM | Single Port Manager |
| SPM | Sleep/Performance Model |
| SPM | Software Project Management |
| SPM | Sound Powered Microphone |
| SPM | Special Purpose Machine |
| SPM | Special Purpose Material |
| SPM | System Program Manager |
| SPMAGTF | Special Purpose Marine Air-Ground Task Force |
| SPMIG | Standard PMS Materials Identification Guide |
| SPN | Secure Private Network |
| SPN | Security Publication Number |
| SPN | Separation Program Numbers |
| SPN | Software Project Notebook |
| SPN | Spare Part Number |
| SPN | Special Program Number |
| SPN | Sponsor Program Number |