Hadler
Hadler is a surname. Notable people with the surname include:
- Åge Hadler, Norwegian orienteering competitor
- Audun Hadler-Olsen, Norwegian rower
- Ingrid Hadler, Norwegian orienteering competitor
- Jayden Hadler, Australian swimmer
- Loretta King Hadler, American actress
- Mary Hadler, American songwriter
- Tom Hadler, English footballer