| Cammin | PL Kamien | ||
| Charlottenfeld | CS Karlin | ||
| Chirlitz | CZ Chrlice | ||
| Chirlitz | CZ Chrlicich/Chrlice | ||
| Chodau | CZ Chodov | ||
| Cholm | PL Chelm | ||
| Christianstadt | PL Krzystowice | ||
| Christinanstal | CZ Kristianov | ||
| Cilli | SLO Celje | ||
| Cosel | PL Kozle | ||
| Cranz | RUS Zelenogradsk | ||
| Crossen | PL Krosno Odranskie | ||
| Czernowitz | R Cernauti | BUK Cernovcy | |
| Czernowitz | CZ Cernovice | ||
| Damitz | CZ Damnice | ||
| Danzig | PL Gdansk | ||
| Darkehmen>Herzogsrode | RUS Gabrilowo | ||
| Deschowitz>Odertal | PL Zdzieszowice | RUS Palanga | |
| Deutsach-Kninitz | CZ Kninice u Miroslav | ||
| Deutsch Brod | SK Havlickuv Brod | ||
| Deutsch Eylau | PL Ilawa | ||
| Deutsch Gabel | CZ Jablonne v.Podjestedi | ||
| Deutsch Kravarn | PL Kravare | ||
| Deutsch Krone | PL Walcz | ||
| Deutsch Proben | SK Nemec Prona | H | |
| Deutsch Proben | SK Nitranske Pravno | ||
| Deutsch-Lissa | PL Lesnica | ||
| Deutsch-Zepling | R Dedrad | ||
| Deutschendorf | SK Poprad | ||
| Deutsch Krone (früher Aneskrone) | PL Walcz | ||
| Deutschpilsen | H Nagybörzsöny | ||
| Dianaberg | CZ Diana | ||
| Dietrichswalde | PL Gietrzwald | ||
| Dittersbach | CS Jetrichovice | ||
| Dobra bei Friedeck | CZ Dobra | ||
| Dobrau | PL Dobra | ||
| Dobschau | CS Dobsina | ||
| Dobschikowetz | CZ Dobrikov | ||
| Dönhoffstedt | PL Drogosze | ||
| Dolzig | PL Dluzek | ||
| Dometzko>Althaus | PL Dometzki | ||
| Domschale | SLO Domzale | ||
| Dorpat | EE Tartu | ||
| Dramatal | PL Zbroslawice | ||
| Dramburg | PL Drawsko | ||
| Drenzig | PL Drzensko | ||
| Drossen | PL Osno | ||
| Drossen | PL Osno | ||
| Dünaburg | LV Daugavpils | ||
| Dürnholz | CZ Drnholec/Jeviskovou | ||
| Dux | CZ Duchcoc |