| Acronym | Definition |
|---|
| SEAC | Special Education Advisory Committee |
| SEAC | State Level Expert Appraisal Committee (India) |
| SEAC | Standards Electronic Automatic Computer |
| SEAC | Standards Eastern Automatic Computer |
| SEAC | Student Environmental Action Coalition |
| SEAC | Spongiform Encephalopathy Advisory Committee |
| SEAC | South East Asia Command (Allies WWII) |
| SEAC | Socio-Economic Analysis Committee (European Chemicals Agency) |
| SEAC | Southeast Archeological Center (National Park Service) |
| SEAC | Southeastern Archaeological Conference |
| SEAC | Supervisory Enumerator Advisory Council (National Association of State Departments of Agriculture) |
| SEAC | Standards Electronic Automatic Computer (US Patent Office, circa late 1950s) |
| SEAC | Senior Enlisted Advisor to the Chairman (of the Joint Chiefs of Staff) |
| SEAC | Standard Eastern Automating Computing |
| SEAC | Submarine Exercise Area Coordinator |
| SEAC | Special Education Assistant Certificate (Canada) |
| SEAC | Safety and Environmental Advisory Council |
| SEAC | Scientific & Engineering Advisory Committee |
| SEAC | Southeast Alaska Conservation Society |