| Abbreviation | Definition |
|---|---|
| DF | Dennis Fairweather, sculptor |
| DG | Dale Gladstone, artist |
| DG | Daniel Gautier |
| DG | David Gallagher (actor) |
| DG | David Gilmour |
| DH | Dan Heldenbrand, DH Interiors, L.L.C. |
| DH | Dan Hird |
| DH | Dann Huff, musician |
| DH | Denis Herbert |
| DH | Derek Harms, web designer |
| DHARMA | Department of Heuristics and Research on Material Application |
| DJ | Davey Johnstone |
| DJ | Davey Jones |
| DJ | Davy Jones |
| DJ | Derek Jeter |
| DJ | Don Juan |
| DJS | Daniel J. Senese |
| DK | David Kemper |
| DK | Derek King |
| DKM | Dana Katherine Mulder |