| Abbreviation | Definition |
|---|---|
| ES | Elite Sniper |
| ES | En Suite |
| ES | End Strength |
| ES | Enemy Status |
| ES | Entire Squad |
| ES | EW (Electronic Warfare) Support |
| ES | Exceeds Standard |
| ES | External Subscriber |
| ESA | Electronic Shop Assistance |
| ESA | Elite Soldiers Alliance |
| ESA | Equipping Serving Assisting |
| ESA | Extended Support Agreement |
| ESAD | Eat Shit And Die |
| ESAR | Electromagnetic Spectrum Allocation Request |
| ESB | Elite Soldiers Battalion |
| ESB | Engineer Support Battalion |
| ESBS | Enlisted Selection Boards System |
| ESC | Electronic Security Command |
| ESC | Electronics Systems Center |
| ESC | Equilibrator Support Cover |