| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Demon | - | Ancient Greek | ||
| Demosthenes | - | Ancient Greek | ||
| Demostrate | - | Ancient Greek | ||
| Den | DEN | English | ||
| Dena | DEEN-ə | English | ||
| Dene | DEEN | English (Rare) | ||
| Denholm | - | English (Rare) | ||
| Denice | də-NEES | English | ||
| Deniece | də-NEES | English (Rare) | ||
| Denis | de-NEE (French), DEN-is (English), DE-nis (German) | French, Russian, English, German, Czech, Slovak, Slovene, Romanian, Croatian | ||
| Denise | de-NEEZ (French), də-NEES (English), də-NEE-sə (Dutch) | French, English, Dutch | ||
| Dennis | DEN-is (English), DE-nis (German), DEN-nis (Dutch) | English, German, Dutch | ||
| Denny | DEN-ee | English | ||
| Denton | DEN-tən | English | ||
| Denver | DEN-vər | English |