D
| Ancient name | Location | Modern name | Also known as |
| Decelea (Δεκέλεια) | Attica, Greece | Dekeleia, Dekelia, Deceleia, Decelia, Tatoi | |
| Delos | Cyclades, Greece | Dhilos (Δήλος) | |
| Delphi | Mount Parnassus, Greece | ||
| Demetrias | Magnesia, eastern Greece | Dimitrias | |
| Dimale | Illyria, Albania | Dymale | |
| Didyma | western Turkey | Didim | |
| Dion | Mount Olympus, Pieria, northern Greece | Dio (Δίο) | |
| Dioscurias | Black Sea coast of Abkhazia, Georgia | Sukhumi | |
| Dodona | Epirus, Greece | abandoned | Dòdònè (Δωδώνη) |
| Dorylaion | near Eskişehir, Turkey | abandoned | Dorylaeum |
| Dyme | Achaea, Greece | abandoned |
Read more about this topic: List Of Ancient Greek Cities