CYOA may refer to:

• Choose Your Own Adventure, a series of children's books
  • An informal term for a gamebook, named after the series
• CYOA, the ICAO airport code for Ekati Airport
• CYOA (Cover Your Own Ass/Arse), an alternative form of the slang phrase Cover your ass

• Entomophaga exoleta
• Entomophaga (fungus)
• Entomophaga grylli
• Entomophaga maimaiga
• Entomophaga nigrohalterata
• Entomophaga sufferta
• Entomophagic nematode
• Entomophilia
• Entomophobe
• Entomophobia (genus)
• Entomophobia (orchid)
• Entomophobia (plant)
• Entomophthoromycota
• Entomoplasma
• Entomoplasma freundtii
• Entomopoxvirinae
• Entomopsis alicei
• Entomopsis clouei
• Entomopsis velaini
• Entomosterna
• Entomosterna cruentata
• Entomosterna ruficollis
• Entomostracites
• Entomostracites (disambiguation)
• Entomovector