What does Cya stand for?

Cysteic Acid - An amino acid

California Youth Activities (SAUO)

Canadian Yachting Association

Cape Yachts Ltd., Pengchau, Hong Kong - Manufacturer code for watercraft hull identification number (USCG)

Carded Yarn Association - Later, AYSA (EA)

Catholic Youth Adoration Society - Defunct (EA)

Catholic Youth Association - Lithuania (EAIO)

Cheyenne Airways, Inc. - ICAO designator (FAAC)

Choya - Argentina - Seismograph station code, US Geological Survey (SEIS)

Classic Yacht Association (EA)

Claymore Resources - Vancouver Stock Exchange symbol

Community Youth Activities (SAUO)

Covenant Young Adults - Defunct (EA)

Cover Your Anatomy - Military, government slang - Bowdlerized version

Cover Your Ass - Slang

Cyclosporin A - See CSA - An immunosuppressant drug

Nopala Chatino - Language code (ETLW)