| Abbreviation | Definition |
|---|---|
| HS | Hidden Sniper |
| HS | High Seas |
| HS | High Speed |
| HS | Home Station |
| HS | Homeland Security |
| HS | Homing Signal |
| HS | Hot Swap |
| HS | Human Shield |
| HSAC | Homeland Security Advisory Council |
| HSAS | Homeland Security Advisory System |
| HSB | Headquarters and Service Battery |
| HSC | Hardware Systems Command |
| HSC | Health Services Command |
| HSC | Helicopter Sea Combat (Navy) |
| HSC | High Speed Craft |
| HSC/PC | Homeland Security Council Principals Committee |
| HSC/PCC | Homeland Security Council Policy Coordination Committee |
| HSCDM | High Speed Cable Driver Modem |
| HSD | Horizontal Situation Display |
| HSD | Human Intelligence Support Detachment |