| SSPD | Sales and Service Professional Development 
| Others |
| SSPD | Sandy Springs Police Department
| Others |
| SSPD | Saratoga Springs Police Department
| Others |
| SSPD | Sasol Slurry Phase Distillate
| Others |
| SSPD | Satellite Servicing Projects Division
| Others |
| SSPD | Savannah-Santee-Pee Dee Ecosystem
| Others |
| SSPD | Scandinavian School of Piping and Drumming
| Others |
| SSPD | Scandinavian Society For Prosthetic
| Others |
| SSPD | Scandinavian Society for Prosthetic Dentistry
| Others |
| SSPD | Schizophrenia Spectrum Personality Diagnoses
| Others |
| SSPD | Sensor Signal Processing for Defence
| Others |
| SSPD | Sensor Signal Processing for Defense
| Others |
| SSPD | ShoeString's Picture Dicer
| Others |
| SSPD | Shuttle System Payload Data
| Others |
| SSPD | Shuttle System Payload Definition
| Others |
| SSPD | Shuttle System Payload Definition (Study)
| Others |
| SSPD | Shuttle System Payload Description
| Others |
| SSPD | Site Specific Performance Demonstration
| Others |
| SSPD | Six Sigma Process Design
| Others |
| SSPD | Society for Stimulus Properties of Drugs
| Others |
| SSPD | Solid State Power Divider
| Others |
| SSPD | Southeastern Society of Pediatric Dentistry
| Others |
| SSPD | Southern Shores Police Department
| Others |
| SSPD | Southwestern Society of Pediatric Dentistry
| Others |
| SSPD | Spartan Spectra and Properties Database
| Others |
| SSPD | Special Services for Persons with Disabilities
| Others |
| SSPD | Special Services to Persons with Disabilities
| Others |
| SSPD | Specialized Service in Personal Development
| Others |
| SSPD | Spontaneous Suction Phase Dispersing
| Others |
| SSPD | Standard Style for Printed Documents
| Others |
| SSPD | Student Society of Pediatric Dentistry
| Others |
| SSPD | Students Supporting People with Disabilities
| Others |
| SSPD | Sub Sahara Power Distributors
| Others |
| SSPD | Super Savings on Prescription Drugs
| Others |
| SSPD | Superconducting Single Photon Detector
| Others |
| SSPD | Superconducting Single Photon Detectors
| Others |
| SSPD | Support Staff Professional Development
| Others |