UHI may refer to:
- Uganda Heart Institute, in Kampala, Uganda
- Universal Handy Interface from Motorola, an interface for mobile phone use in Mercedes-Benz cars
- University of the Highlands and Islands, formerly known as UHI Millennium Institute, in Scotland
- UHI Archaeology Institute
- UHI North, West and Hebrides
- UHI Orkney
- UHI Perth
- UHI West Highland College
- Urban heat island, in climatology
- U-Haul U-Haul International, a US moving company
- An is also the name for a tool used in , traditional Māori tattoo-like skin marking