Betz may refer to:
- GE Betz, a water treatment company
- Betz, Oise, a commune in France
People with the surname Betz:
- Albert Betz, a physicist
- Carl Betz, an actor
- Hans-Dieter Betz, a German experimental physicist
- Pauline Betz, a tennis player
- Peter Betz, a businessman
- Vladimir Betz, Russian scientist