| Abbreviation | Definition |
|---|---|
| DD | Dumb Duck |
| DD | Dwight David |
| DD | Dwight Douglas |
| DD | Dylan Daniel |
| DDK | Daniel Dae Kim |
| DEBBIE | Deborah |
| DEDE | Deirdre |
| DEK | Derek |
| DFW | David Foster Wallace |
| DGY | Darlingirlyou |
| DH | Demetrius Harris |
| Dia | Diamanta |
| DIL | Daughter-In-Law |
| DJ | Daisy Jane |
| DJ | Dale Junior |
| DJ | Dalton James |
| DJ | Dameron Jamal |
| DJ | Daniel Jeremiah |
| DJ | Daniel Joseph |
| DJ | Danna Jhonnes |