DGN
DGN is an abbreviation for:
- Airport of the Dahlgren Naval Surface Warfare Center , in Dahlgren Virginia , USA according to the IATA code
- German Society for Neurology , a medical society
- German Society for Nuclear Medicine , a scientific specialist society
- German health network
.dgn is an abbreviation for:
- .dgn , file format used by Bentley Systems, see list of file extensions / D
