| Acronym | Definition |
|---|
| SMHD➣Smoky Mountain Harley-Davidson (Tennessee) |
| SMHD➣Southern Mono Healthcare District (Mammoth Hospital; Mammoth Lakes, CA) |
| SMHD➣Second Minute Hour Day |
| SMHD➣Student Monitor Help Desk |
| SMHD➣San Mateo Harbor District (est. 1933; San Francisco, CA) |
| SMHD➣South Milwaukee Health Department (Wisconsin) |