What does GYA stand for?

German Youth Activities (SAUO)

German Youth Assistance (SAUO)

Glenn Young Boats, Ocean Springs, MS - Manufacturer code for watercraft hull identification number (USCG)

Got Ya Again - Initialism used as name of second successful phony event staged by Washington, DC, law enforcement agents posing as fences - See PFF Inc

Guayaramerin - Bolivia - Airport symbol (OAG)

Gulf Yachting Association (EA)

Guyana Airways Corp. - ICAO designator (FAAC)

Northwest Gbaya - Language code (ETLW)