System 6 (disambiguation)
# System 6 (disambiguation)

System 6 or System/6 may refer to:

## Computing

* IBM Office System/6, a minicomputer developed by IBM; premiered in 1977

Operating systems:

* System Software 6, the Apple operating system introduced in 1988
* Version 6 Unix, released in 1975

## Other

* System 6, line of BMW Motorrad helmets
* System 6, line of Cannondale bicycles
* 6.0 system, the figure skating judging system
* D6 System, the role-playing game system
* Signalling System 6, telephony signaling protocols
* STS-6 (Space Transportation System-6), the Space Shuttle mission
