| Acronym | Meaning |
| SPG | Sakartvelos Sotsialisturi Partia (Russian: Socialist Party) |
| SPG | Security Police Group |
| SPG | Self-Propelled Gun |
| SPG | Shiga Prefectural Government (Japan) |
| SPG | Sichuan Provincial Government |
| SPG | Software Product Group |
| SPG | Special Patrol Group |
| SPG | Special Police Group |
| SPG | Special Products Generator |
| SPG | Special Protection Group (India) |
| SpG | Specialst, Gunnery (US Navy) |
| SPG | Standard Procedure Guide |
| SPG | State Protection Group (New South Wales, Australia) |
| SPG | Stockpile Planning Guidance |
| SPG | Strategic Planning Guidance (US DoD) |
| SPG | Supplementary Planning Guidance (UK) |
| SPG | Supporting People Grant (UK) |
| SPG | Système des Préférences Généralisées (French: Generalized System of Preferences; trade regulation; EU) |