Organisms

• Blow-flies (Calliphoridae) of genus Calliphora and similar species from other genera
  • Specifically, the Blue bottle fly
    Blue bottle fly
    The blue bottle fly or bottlebee is a common blow-fly found in most areas of the world and is the type species for the genus Calliphora.-Description:...
    
     (Calliphora vomitoria)
• Cornflower
  Cornflower
  Centaurea cyanus is a small annual flowering plant in the family Asteraceae, native to Europe. "Cornflower" is also erroneously used for chicory, and more correctly for a few other Centaurea species; to distinguish C...
  
   (Centaurea cyanus)
• Portuguese Man o' War
  Portuguese Man o' War
  The Portuguese Man o' War , also known as the Portuguese man-of-war, man-of-war, or bluebottle, is a jelly-like marine invertebrate of the family Physaliidae...
  
   (Physalia physalis), stinging marine siphonophores resembling jellyfish and known as bluebottles in Australia, South Africa and New Zealand
• Blue ant
  Blue ant
  The blue ant is, despite its name and its appearance, not an ant at all, but rather a species of large solitary parasitic wasp sometimes known as a flower wasp. It is a native of south and southeast Australia, including the Australian states of Tasmania, New South Wales, Victoria and South...
  
  , a species of large solitary parasitic wasp

Other

• Blue bottle (chemical reaction)
  Blue bottle (chemical reaction)
  The blue' bottle reaction is a chemical reaction in which a colorless solution in a closed bottle containing some air turns blue upon shaking and then decolorizes again after a while. After shaking again the blue color returns and this cycle can be repeated several times...
  
  
• The Blue Bottle Coffee House
  The Blue Bottle Coffee House
  The Blue Bottle coffee house was one of the first coffee houses in Europe. It was founded in 1686 in Vienna, Austria by Jerzy Franciszek Kulczycki as the Hof zur Blauen Flasche...
  
  , one of the first coffee houses in Europe, located in Vienna in 1686
• Bluebottle (character)
  Bluebottle (character)
  Bluebottle is a comedy character from the Goon Show, a 1950s British comedy radio show. The character was created and performed by Peter Sellers....
  
  , in The Goon Show
• Bluebottle OS
  Bluebottle OS
  Bluebottle is the next generation Native Oberon, the Oberon operating system for bare PC hardware. It was developed at the ETH Zurich. It is small and fast and supports multiprocessor computers. It is completely based on an upward-compatible dialect of the Oberon programming language called Active...
  
  , computer operating system written in the Oberon programming language
• Fizzy Blue Bottles, A type of sour sweets
• Police officer
  Police officer
  A police officer is a warranted employee of a police force...
  
  in outdated British slang