English abbreviations from cxo to cyia
- CXO (Lone Star Executive Airport)
- CXP (Tunggul Wulung Airport)
- CXQ (Christmas Creek Airport)
- CXR (Christmas Island (ISO 3166 trigram))
- CXT (Charters Towers Airport)
- CXY (Cat Cay Airport)
- cy (Welsh language (ISO 639-1 code))
- CYA (Les Cayes Airport)
- CYB (Gerrard Smith International Airport)
- CYBD (cyberbond log)
- CYBER (Can You BE Real?)
- CYBLK (cyberlook log)
- CYC (Caye Chapel Airport)
- CYCI (California Youth Council Institute)
- CYD (Community Youth Development)
- CYDIP (cyberdip log)
- CYDN (cyberdon log)
- CYDS (Comprehensive Youth Development System)
- CYF (Chefornak Airport (FAA: CFK))
- CYFUSA (Catholic Youth Foundation, United States of America)
- CYG (Corryong Airport)
- CYI (Chiayi Airport)
- CYIA (Christian Youth In Action)