Bluebottle can mean:
Organisms
Blow-flies (Calliphoridae) of genus Calliphora and similar species from other genera Specifically, the blue bottle fly Calliphora vomitoria The Portuguese man o' war (Physalia utriculus), stinging marine siphonophores resembling jellyfish and known as bluebottles in Australia, South Africa and New Zealand Blue ant, a species of large solitary parasitic wasp Centaurea cyanus, the cornflower Graphium sarpedon, common bluebottle, or blue triangle butterfly
Other
Blue bottle (chemical reaction) The Blue Bottle Coffee House, Vienna, founded in 1686 Blue Bottle Coffee, roaster based in Oakland, California, US Bluebottle (character), in The Goon Show Bluebottle OS, computer operating system Fizzy Blue Bottles, a type of sour sweets A slang term for a police officer