| Acronym | Definition |
|---|
| SDHD➣Succinate Dehydrogenase Complex, Subunit D |
| SDHD➣Southeastern District Health Department (Idaho) |
| SDHD➣Siouxland District Health Department (Sioux City, IA) |
| SDHD➣San Diego Harley Davidson (San Diego, CA) |
| SDHD➣South Dennis Historic District (Massachusetts) |