| Acronym | Definition |
|---|
| MEFS | Microsoft Encrypted File System |
| MEFS | Multi Engine File Sharing |
| MEFS | Mission Essential Functions |
| MEFS | Middle East Fertility Society (Beirut, Lebanon) |
| MEFS | Midterm Energy Forecasting System |
| MEFS | Minimum Economic Field Size |
| MEFS | Maine Forest Service |
| MEFS | Magyar Egyetemi Foiskolai Sportszövetség (Hungarian University Sports Federation) |
| MEFS | Multiple Excitation Fluorometric System |
