Bacteria (disambiguation)

Bacteria are a major group of prokaryotic living organisms.

Bacteria may also refer to:
 * Bacteria (malware) or Rabbit Programs, a type of malicious software
 * Bacteria, a fictional country in The Great Dictator
 * Bacteria (Asterix character), the wife of Unhygienix in the Asterix comics
 * Bacteriidae, a family of South American stick insects