SPSO
| Acronym | Definition |
|---|---|
| SPSO | Scottish Public Services Ombudsman (UK) |
| SPSO | Singapore Primary Science Olympiad (competition) |
| SPSO | Senior Personnel Staff Officer (UK) |
| SPSO | Supplier Process Sign-Off |
| SPSO | Standard Particle Swarm Optimization |
| SPSO | Science Processing Support Office (US NASA) |
| SPSO | Southeastern Pennsylvania Symphony Orchestra (est. 1972) |
| SPSO | Strathfield Planning Scheme Ordinance (zoning; Australia) |
| SPSO | State Programme Support Office (USAID) |
| SPSO | Simple Package Saw Oscillator (Epson) |