| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Didacus | - | Medieval Spanish | ||
| Didi | DEE-dee | German | ||
| Dido | - | Roman Mythology | ||
| Diederich | DEE-de-rikh | German (Archaic) | ||
| Diego | DYE-go | Spanish | ||
| Dierk | DEERK | German | ||
| Dieter | DEE-ter | German | ||
| Dietfried | DEET-freet | German | ||
| Diethelm | DEET-helm | German | ||
| Dietlinde | deet-LIN-də | German | ||
| Dietmar | DEET-mahr | German | ||
| Dietrich | DEET-rikh | German | ||
| Dieuwe | DOO-ə | Frisian | ||
| Dieuwer | - | Frisian | ||
| Dieuwert | - | Frisian |