| 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 | |
| Dionysius | | - | Ancient Greek (Latinized), Biblical | |
| Dionysodoros | | - | Ancient Greek | |
| Dionysus | | die-ə-NIE-səs (English) | Greek Mythology (Latinized) | |
| Diot | | - | Medieval English | |
| Dip | | - | Indian, Hindi, Marathi, Gujarati, Bengali, Punjabi | |
| Dipa | | - | Indian, Hindi, Marathi, Punjabi, Bengali, Malayalam, Tamil | |