A list of individuals that were, at one point, suspects or persons of interest in the Zodiac Killer case.
- Arthur Leigh Allen
- Richard Gaikowski
- Gareth Penn
- Rick Marshall
- Michael O'Hare
- Bruce Davis
- Lawrence Kane
- Ted Kaczynski
- Ross Sullivan
- Fred Manalli
- Kjell Qvale
- Earl Van Best
- William J. Grant
- Rafael Cruz
- Jack Tarrance
- Charles Clifton Collins
- George Russell Tucker
- Guy Ward Hendrickson
- Joseph Newton Chandler III
- Louie Myers
- Joseph Bevilacqua
- Gary Francis Poste
