| Acronym | Definition |
|---|
| Hemi | Hemispherical |
| Hemi | hemispherical (combustion chambers in engines) |
| Hemi | Hemisphere |
| Hemi | Hopkins Extreme Materials Institute (Johns Hopkins University; Maryland) |
| Hemi | Higher Education Mentoring Initiative (University of Cincinnati; Cincinnati, OH) |
| Hemi | High Energy Metals, Inc. (Sequim, WA) |
| Hemi | Hagyard Equine Medical Institute (Lexington, KY) |
| Hemi | Hybrid EFIE (Electric Field Integral Equation) /MFIE (Magnetic Field Integral Equation) Iterative |
| Hemi | Husky Energy Marketing, Inc. (Calgary, Alberta, Canada) |