| Acronym | Definition |
|---|
| MEST | Marine Engineering, Science and Technology (federation) |
| MEST | Middle European Summer Time |
| MEST | Matter Energy Space Time (Dianetics & Scientology Technical Dictionary) |
| MEST | Ministry of Environment, Science and Technology (Ghana) |
| MEST | Meltwater Entrepreneurial School of Technology (Accra, Ghana) |
| MEST | Middle European Summer Time (GMT +0200) |
| MEST | Mouse-Ear-Swelling-Test (method for the detection of skin sensitizing properties of substances) |
| MEST | Ministry of Education, Science & Technology (South Korea) |
| MEST | Mission Essential Skills Training (US Air Force) |
| MEST | Maximal Electroshock Seizure Threshold (Model) |
| MEST | Missile Electrical System Test |
| MEST | Multinational Entry Into Service Team |