Hallet may refer to:
Places
edit- Cape Hallett, Northern Victoria Land, the location of a scientific base in Antarctica
- Hallett, South Australia, Australia
- Halletts Bay, on the eastern shore of Lake Taupo in New Zealand
United States
edit- Hallett, Missouri
- Hallett, Oklahoma
- Hallett Nature Sanctuary, New York City, US
- Hallett Peak, a mountain in Colorado's Rocky Mountain National Park, USA