GDG
GDG is an abbreviation for:
- Generation Data Group , a special form of files under mainframe operating systems of the IBM z / OS series
- Association of large German trade fairs , an interest group of the trade fair companies Berlin, Düsseldorf, Frankfurt, Hanover, Cologne, Munich and Nuremberg.
GdG is an abbreviation for:
- History of the Present , a political online magazine from Switzerland
- Union of union workers , German union
- Community Employees Union, Austrian union, see Younion
- Community of parishes (Diocese of Aachen)
