| Acronym | Meaning |
| SP | Security Police |
| SP | Shore Patrol (US Navy equivalent to MP) |
| SP | Shore Police |
| SP | State Police |
| SP | Salisbury (postcode, United Kingdom) |
| SP | Samajwadi Party (India) |
| SP | Secondary Participants |
| SP | Section Patrol (US Navy) |
| SP | Security Plan |
| SP | Security Policy |
| SP | Security Procedure |
| SP | Security Protocol |
| SP | Security Publication |
| SP | Self-Propelled |
| SP | Sensitive Point |
| SP | Sentencing Project |
| SP | Session Plan |
| SP | Set Point |
| SP | Shore Party |
| SP | Shore Power |
| SP | Shore/Submarine Patrol |
| SP | Singapore Power |
| SP | Single Pedestal |
| SP | Single Piece |
| SP | Single Purpose Gun (US Navy) |
| SP | Sistema Penitenciario (Spanish, Guatemala) |
| SP | Smokeless Powder |
| SP | Socialist Party of Macedonia (The Former Yugolsav Republic of Macedonia) |
| SP | Soft Point (bullet) |
| SP | Solidarity Party |
| SP | Somos Peru |
| SP | Sotapoliisi (Finnish: military police) |
| SP | Sound Powered |
| SP | Space and Power |
| SP | Spare Parts |
| SP | Special Probation |
| SP | Special Project |
| SP | Special Publication |
| SP | Special Purpose |
| SP | Specialist |
| SP | Specific Process |
| SP | Spouse |
| SP | Stability Pact |
| SP | Standard Holding Pattern |
| SP | Standard Practice |
| SP | Standard Procedure |
| SP | Standardized Proposal |
| SP | Start of Patrol (US Army in radio reports) |
| SP | State Paper Office (UK) |
| SP | State Patrol |
| SP | State Pension (UK) |
| SP | State Primary |
| SP | Steam Propulsionman (USN Rating) |
| SP | Stock Point |
| SP | Stopping Power (various meanings) |
| SP | Strategic Plan |
| SP | Strategic Planning |
| SP | Student Pilot |
| SP | Study Point |
| SP | Submission(s) Processing |
| SP | Subpoena Preparation |
| SP | Summary Plotter (radar; US Navy) |
| SP | Sungai Petani (Kedah, Malaysia) |
| SP | Superintendent of Police (India) |
| SP | Supply Point |
| SP | Support Plan |
| SP | Supportability Plan |
| SP | System Processor (avionics) |
| SP | Systems Procedures |