People with the last name Otterbacher in Illinois
- A Otterbacher
- Alan Otterbacher
- Bridgette Otterbacher
- Bruce Otterbacher
- C Otterbacher
- Daniel Otterbacher
- Diana Otterbacher
- Eula Otterbacher
- Greg Otterbacher
- K Neil Otterbacher
- Laura Otterbacher
- Marcia Otterbacher
- Paul Otterbacher
- Robert Otterbacher
- Rupert Otterbacher
- Susan Otterbacher
- Theodore Otterbacher
- Theron Otterbacher
- Violet Otterbacher
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