Barrelfish may refer to:

Animals

• Hyperoglyphe, a genus of fishes of the medusafish and butterfish family, also known as barrelfishes
  • Hyperoglyphe perciformis, the barrelfish, a bathypelagic fish found in the Northern Atlantic Ocean with a wide range

Computers

• Barrelfish (operating system), an experimental computer operating system

This disambiguation page lists articles associated with the title Barrelfish.
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