TWH or twh could refer to:
- Tai Dón language, a language of Vietnam, Laos, and China
- Tennessee Walking Horse, a breed of horse
- Toronto Western Hospital, a hospital in Toronto, Canada
- TWH Bus & Coach, a bus company in Romford, England
- Terawatt-hour (TWh), a measure of electrical energy, 10 watt-hours
- The White House, the official residence and principal workplace of the President of the United States
- TWH Collectibles, a diecast scale model vehicle manufacturer.