| Abbreviation | Definition |
|---|---|
| DI | Dralknaflag slands |
| DI | Dýralæknafélag Íslands |
| DI | Icelandic Veterinary Association |
| DIFF | Association of Swedish Speaking Engineers in Finland |
| DIFF | Driftingenjörsförbundet i Finland |
| DIFF | Driftingenjrsfrbundet i Finland |
| DIGI | Deutsche Interessengemeinschaft Internet |
| DIGI | German Internet Interest Group |
| DIS | Design Innovation and Society |
| DISS | Delft International Student Society |
| DKMS | Donor Kidney M Society |
| DKNVS | Det Kongelige Norske Videnskabers Selskab |
| DKNVS | Kongelige Norske Videnskabers Selskab |
| DKNVS | Royal Norwegian Society of Sciences and Letters |
| DKS | Danish Surgical Society |
| DKS | Dansk Kirurgisk Selskab |
| DLG | Deutsche Landwirtschafts-Gesellschaft |
| DLG | German Agricultural Society |
| DMF | Danish Mathematical Society |
| DMF | Danish Union of Musicians |