SDH may refer to:
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Biology and medicineEdit
- Serine dehydratase
- Sorbitol dehydrogenase
- L-sorbose 1-dehydrogenase
- Subdural haematoma
- Succinate dehydrogenase
Organizations and placesEdit
TransportationEdit
- Sudbury Hill Harrow railway station, England, National Rail station code
OtherEdit
- Shubnikov–de Haas effect
- Social Determinants of Health
- Southern Kurdish, by ISO 639-3 code
- Subtitles for the deaf and hard-of-hearing
- Synchronous digital hierarchy, in telecommunications