| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Diocletianus | - | Ancient Roman | ||
| Diodato | - | Italian | ||
| Diodoros | - | Ancient Greek | ||
| Diodorus | - | Ancient Greek (Latinized) | ||
| Diodotos | - | Ancient Greek | ||
| Diodotus | - | Ancient Greek (Latinized) | ||
| Diogenes | - | Ancient Greek | ||
| Diokles | - | Ancient Greek | ||
| Dion | DEE-ahn (English), dee-AHN (English) | Ancient Greek, English | ||
| DionÝZ | - | Slovak | ||
| Dionisia | - | Medieval English | ||
| Dionisie | - | Romanian | ||
| Dionisio | dyo-NEE-syo (Spanish), dyo-NEE-zyo (Italian) | Spanish, Italian | ||
| Dionysia | - | Late Roman | ||
| Dionysios | - | Greek, Ancient Greek |