| Acronym | Meaning |
| EVAP | Evaporator |
| EVATA | Extravehicular Activity Translational Aid |
| EVC | Extravehicular Communications |
| EVCON | Events Control (Subsystem) |
| EVCS | Extravehicular Communications System |
| EVCU | Extravehicular Communications Umbilical |
| EVD | External Visual Display |
| EVF | Equipment Visibility File |
| EVLSS | Extravehicular Life Support System |
| EVM | Earth Viewing Module |
| EVMU | Extra Vehicular Mobility Unit |
| EVO | Engineering Verification Order |
| EVS | Equipment VisibilitY System |
| EVS | Extravehicular Suit |
| EVSC | Extravehicular Suit Communications |
| EVSS | Extravehicular Space Suit |
| EVSU | Extravehicular Space Unit |
| EVT | Engineering Verification Test |
| EVT | Extravehicular Transfer |
| EVVA | Extravehicular Visor Assembly |
| EWA | Estimated Warehouse Arrival |
| EWE | Emergency Window Escape |
| EWO | Engineering Work Order |
| EWR | Engineering Work Request |
| EX | Executive Management Office (KSC Directorate) |
| EXC | Experiment Computer |
| EXCH | Exchange |
| EXEC | Execute |
| EXH | Exhaust |
| EXO | Experiment Operator (in Spacelab) |
| EXP | Expand |
| EXP | Experiment |
| EXP | Exposure |
| EXPEN | Expendable |
| EXT | Experiment Terminal (Operator Console On Spacelab) |
| EXT | Extension |
| EXT | External |
| EXTD | Extend |
| EXTER | External |
| EXTGH | Extinguish |
| F | Fahrenheit |
| F | Failure |
| F | Farad (SI Unit Of Capacitance) |
| F | Female |
| F | Forward |
| F | Front |
| F | LCA Forward Load Control Assembly |
| F&E | Facility And Envii-onment |
| F/0 | Fuel/Oxidizer Ratio |
| F/A | Failure Analysis |