Blue box (disambiguation)

Blue box may refer to:

In technology:

• Blue box, an early phreaking tool that simulates a telephone operator's dialing console
• The Bluescreen film and video technique
• The Link Trainer flight simulator
• The Classic environment in the Mac OS X computer operating system
• A windows shell replacement based on the Blackbox window manager for Unix
• A guitar effects pedal originally made by the MXR company in the 1970s
• A communications device used on boats

In entertainment:

• In Doctor Who
  • The TARDIS
  • Blue Box (Doctor Who) a novel by Kate Orman about phreaking
• Bluebox Limited, a film production company
• Blue Box (album), an album by Kate Ceberano, released in 1996
• Blue Box (band), a New York-based rock band
• An entity in the Animorphs novel series, also known as the Escafil Device or the Morphing Cube

Other uses:

• Blue box (WTO agreement), a subsidy category of the World Trade Organization
• Blue Box (container), used by the recycling programs of the Canadian provinces of British Columbia and Ontario
• A British police box
• A severe thunderstorm watch, in meteorology
• The American Express credit card company
• A section of the negotiation in the agricultural sector of the World Trade Organization's Doha Round
• A slang term for vasocongestion
• Blue box (JNF) - Jewish National Fund blue charity collection boxes