Urchin

Urchin or urcheon is the Middle English term for "hedgehog". As such, it is applied to many things that take a similar form to a hedgehog:

• Street children, homeless children who live on the street
• Sea urchins are spiny sea creatures that are round and prickly like hedgehogs.
• In old theater, urchin was a common name for an elf or fairy that took on a prickly appearance.
• The word urcheon is used to refer to the hedgehog in heraldry

It may also refer to:

• Urchin (film), a 2007 film about a homeless boy living in underground, by John Harlacher
• HMS Urchin, the name of four ships of the British Royal Navy
• Urchin Software Corporation, a US web analytics company owned by Google
  • Urchin (software), a series of web analytics developed by the Urchin Software Corporation (now Google Analytics)
• Urchin (band), a band led by Dave Murray and Adrian Smith of Iron Maiden
• Urchin (detonator), code name for the neutron generating device that triggered the nuclear detonation of the earliest plutonium atomic bombs
• Urchin, the squirrel protagonist in The Mistmantle Chronicles book series.
• Sound of Urchin, an eclectic alternative rock band
• Urchin, an enemy in the 1990 video game Super Mario World
• The Urchins, English hooligan firm associated with Liverpool F.C.