What does DYA stand for?

Alyemda-Democratic Yemen Airlines - ICAO designator (FAAC)

Daytona Beach, FL - Amtrak Busline code

Daytona Custom Yachts, Daytona Beach, FL - Manufacturer code for watercraft hull identification number (USCG)

Deflection Yoke Amplifier

Dennis Young and Associates, Inc. - Commercial firm

Department of Youth Authority (SAUS)

Dependent Youth Activities (SAUO)

Dyan - Language code (ETLW)

Dynamics Corp. Amer - NYSE symbol

Dynamics Corp. of America - NYSE symbol (SPSG)

Dysart - Australia - Airport symbol (OAG)