AEFS
| Acronym | Definition |
|---|---|
| AEFS | Fleet Replenishment Ship (US Navy designation) |
| AEFS | Advanced Elementary Formal Systems (computer science) |
| AEFS | Advanced Electronic Flight Strips |
| AEFS | Airport Equipment Fueling System |
| AEFS | Anti-Exposure Flight Suit |
| AEFS | American Expeditionary Forces Siberia (US DoD; post-World War I) |