DZJ stands for Dolnoslaski Zwiazek Jezdziecki (Polish: Dolnoslaskie Equestrian Federation; Dolnoslaskie, Poland)
DZK stands for Delta Zeta Kappa DZK stands for Dansk Zebrafinke Klub (Danish: Danish Zebra Finch Club)
DZG stands for Deutschen Zöliakie Gesellschaft (German Coeliac Society, to help people with coeliac disease or Dermatitis Herpetiformis Duhring) DZG…