BSH may refer to:
- Bacillithiol, a thiol compound found in bacteria
- Bahrain Specialist Hospital, a hospital in Bahrain
- Bayley Seton Hospital on Staten Island, New York, US
- Belarusian Socialist Hramada, a political party
- Bishan MRT station, station abbreviation
- BSH Bosch and Siemens Home Appliances
- British Society for Haematology
- Bushey railway station, station code
- Bushel, a unit of dry volume
- Federal Maritime and Hydrographic Agency of Germany (German: Bundesamt für Seeschifffahrt und Hydrographie)
- BSh, Köppen climate classification for hot semi-arid climates