| Acronym | Meaning |
| SEAS | Selected Ammunition Study |
| SEAS | Selected Effects Armament System |
| SEAS | Selective Armament Subsystem |
| SEAS | Ship/Equipment/Alterations Summary |
| SEAS | Strategic Environmental Assessment System |
| SEAS | Supply Effectiveness Audit Summary |
| SEAS | Support Equipment Avionics System |
| SEAS | Surveillance Environmental Acoustic Support |
| SEAS | Synthetic Environment for Analysis and Simulation (Simulex) |
| SEAS | Systems Engineering and Analysis Support |