| SEAD | Salzburg Experimental Academy of Dance 
| Others |
| SEAD | Sanders Eating A Donut
| Others |
| SEAD | Sciences Engineering Arts and Design
| Others |
| SEAD | Scottish Education and Action for Development
| Others |
| SEAD | Security Executive Agent Directive
| Others |
| SEAD | Shear Enhanced Anaerobic Digestion
| Others |
| SEAD | Small Economic Activity Development
| Others |
| SEAD | Social Emotional and Academic Development
| Others |
| SEAD | Social Entrepreneurship Accelerator at Duke
| Others |
| SEAD | South East Asian Drafting
| Others |
| SEAD | Strategic Environmental Archaeology Database
| Others |
| SEAD | Study Of Estrogen Activity And Development
| Others |
| SEAD | Subtle Energy Activation Device
| Others |
| SEAD | Summer Enrichment At Dartmouth
| Others |
| SEAD | Summit Engineering and Design
| Others |
| SEAD | Support And Education For Alzheimer Disease
| Others |
| SEAD | Supporting Excellence and Advocating Diversity
| Others |
| SEAD | Suppression Enemy Air Defense
| Others |
| SEAD | Suppression of Enemy Air Defence
| Others |
| SEAD | Suppression of Enemy Air Defences
| Others |
| SEAD | Suppression of Enemy Air Defenses
| Air Force |
| SEAD | Supression Of Enemy Air Defenses
| Others |
| SEAD | Symptoms Examination and Assessment for Dementia
| Others |
| SEAD | Systems Engineering And Analysis Division
| Others |