C-Bus or Cbus may refer to:
Clipsal C-Bus, a home-automation product range manufactured by Clipsal Australia. C-Bus (protocol), an open protocol used by Clipsal C-Bus products. Compatible Bus, a 16-bit local bus in certain PC-98-based personal computers. Cbus (superannuation fund), a superannuation fund for the building and construction industries in Australia Nickname for Columbus, Ohio The CBUS, a local bus service in Columbus, Ohio