People with the last name Hallen in Colorado
- Aaron Hallen
- Andrea Hallen
- Arnold Hallen
- Ben Hallen
- Carin Hallen
- Cynthia Hallen
- Dan Hallen
- Dana Hallen
- Dorothy Hallen
- Edward Hallen
- Eric Hallen
- Jacqueline Hallen
- Jeffery Hallen
- Jeffrey Hallen
- John Hallen
- Kay Hallen
- Laraine Hallen
- Nubia Hallen
- Pamela Hallen
- Richard Hallen
- Shawn Hallen
- Stroesenreuther Hallen
- Tatiana Hallen
- Zachary Hallen
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