| Acronym | Definition |
|---|
| STAG | Staggered |
| STAG | Service Tag |
| STAG | Scottish Transport Appraisal Guidance |
| STAG | State and Tribal Assistance Grants |
| STAG | Sentry Duty |
| STAG | Steam and Gas (GE's combined cycle power generation equipment) |
| STAG | South Tyneside and Gateshead (UK) |
| STAG | Security Techniques Advisory Group |
| STAG | Shobnall Traffic Action Group (UK) |
| STAG | Saber Tanker Aerial Group (aircraft refueling) |
| STAG | Strategic and Technical Advisory Group (WHO) |
| STAG | Special Task Air Group (US Navy) |
| STAG | Systems Technical Advisory Group (CMS) |
| STAG | Smart Tactical Autonomous Guidance |
| STAG | Society of Travel Agents in Government |
| STAG | Sustainable Tourism Action Group (UK) |
| STAG | Special Tactics Airsoft Group (various locations) |
| STAG | State and Tribal Assistance Grant Programs |