| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Demetrio | de-ME-tryo | Italian, Spanish | ||
| Demetrios | - | Greek, Ancient Greek | ||
| Demetrius | - | Ancient Greek (Latinized) | ||
| Democritus | - | Ancient Greek (Latinized) | ||
| Demokritos | - | Ancient Greek | ||
| Demon | - | Ancient Greek | ||
| Demosthenes | - | Ancient Greek | ||
| Demostrate | - | Ancient Greek | ||
| Demyan | dyem-YAHN (Russian), deem-YAHN (Russian), dem-YAHN (Ukrainian) | Russian, Ukrainian | ||
| Dene | DEEN | English (Rare) | ||
| Deneb | - | Astronomy | ||
| Denholm | - | English (Rare) | ||
| Denica | - | Bulgarian, Macedonian | ||
| Deniece | də-NEES | English (Rare) | ||
| Denis | de-NEE (French), DEN-is (English), DE-nis (German) | French, Russian, English, German, Czech, Slovak, Slovene, Romanian, Croatian |