Look up pathogen in Wiktionary, the free dictionary.
A pathogen is a microorganism in the widest sense that causes disease in its host.
Pathogen may also refer to:
- Pathogen (Two Steps from Hell album), 2007
- Pathogen (Made of Hate album), 2010
- Pathogen (film), a 2006 zombie horror independent film
- "Pathogen" (Stargate Universe), an episode of Stargate Universe