Twin Towns in the UK
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| UK town | UK region | Overseas town/region | Overseas country |
| Dacorum | Hertfordshire | Neu-Isenburg | Germany |
| Dalkeith | Midlothian | Jarnac | France |
| Danbury | Essex | Altenglan | Germany |
| Danbury | Essex | Croissy-Sur-Seine | France |
| Danderhall | Midlothian | Angres | France |
| Darley Dale | Derbyshire | Onzain | France |
| Darlington | Darlington | Amiens | France |
| Darlington | Darlington | Mulheim An Der Ruhr | Germany |
| Dartford | Kent | Gravelines | France |
| Dartford | Kent | Hanau | Germany |
| Dartford | Kent | Namyangjoo | Republic of Korea |
| Dartford | Kent | Tallinn | Estonia |
| Dartmouth | Devon | Courseulles-Sur-Mer | France |
| Daventry | Northamptonshire | Iganga | Uganda |
| Daventry | Northamptonshire | Westerburg/Westerw. | Germany |
| Dawlish | Devon | Carhaix-Plouguer | France |
| Deal | Kent | St-Omer | France |
| Deal | Kent | Vlissingen | Netherlands |
| Denbigh | Denbighshire | Biebertal | Germany |
| Denmead | Hampshire | Ste Georges les Baillargeaux | France |
| Denny | Falkirk | Souillac | France |
| Denton | Greater Manchester | Montigny-Le-Bretonneux | France |
| Derby | Derbyshire | Osnabruck | Germany |
| Derbyshire County | Derbyshire | Ascoli Piceno Province | Italy |
| Derbyshire County | Derbyshire | Crimean Region | Ukraine |
| Derbyshire County | Derbyshire | Shanxi Province | China |
| Derbyshire County | Derbyshire | Toyota City | Japan |
| Derbyshire Dales | Derbyshire | Vogelsbergkreis | Germany |
| Dereham | Norfolk | Ruthen | Germany |
| Derwentside | Durham | Werdohl | Germany |
| Desborough | Northamptonshire | Antau | Austria |
| Desborough | Northamptonshire | Bievre | Belgium |
| Desborough | Northamptonshire | Bucine | Italy |
| Desborough | Northamptonshire | Cashel | Ireland |
| Desborough | Northamptonshire | Cisse | France |
| Desborough | Northamptonshire | Esch | Netherlands |
| Desborough | Northamptonshire | Hepstedt | Germany |
| Desborough | Northamptonshire | Holmegaard | Denmark |
| Desborough | Northamptonshire | Kannus | Finland |
| Desborough | Northamptonshire | Kolindros | Greece |
| Desborough | Northamptonshire | Neuville-De-Poitou | France |
| Desborough | Northamptonshire | Ocana | Spain |
| Desborough | Northamptonshire | Okelbo | Sweden |
| Desborough | Northamptonshire | Samuel | Portugal |
| Desborough | Northamptonshire | Troisverges | Luxembourg |
| Devizes | Wiltshire | Mayenne | France |
| Devizes | Wiltshire | Oamaru | New Zealand |
| Devizes | Wiltshire | Tornio | Finland |
| Devizes | Wiltshire | Waiblingen | Germany |
| Devon County | Devon | Baranya County | Hungary |
| Devon County | Devon | Calvados | France |
| Devon County | Devon | Luneburg Rb | Germany |
| Devon County | Devon | Marin County | USA |
| Devon County | Devon | Uelzen Lk | Germany |
| Dewsbury | West Yorkshire | Bergkamen | Germany |
| Didcot | Oxfordshire | Meylan | France |
| Dinefwr | Carmarthenshire | Kehl Am Rhein | Germany |
| Ditton | Kent | Rang-Du-Fliers | France |
| Ditton Priors | Shropshire | Simple | France |
| Dolgellau | Caernarfonshire & Meirioneth | Guerande | France |
| Dollar | Clackmannanshire | La Ville-Aux-Dames | France |
| Dolton | Devon | Amfreville | France |
| Doncaster | South Yorkshire | Avion | France |
| Doncaster | South Yorkshire | Dandong | China |
| Doncaster | South Yorkshire | Doncaster | Australia |
| Doncaster | South Yorkshire | Gliwice | Poland |
| Doncaster | South Yorkshire | Herten | Germany |
| Doncaster | South Yorkshire | Wilmington | USA |
| Dorchester | Dorset | Holbaek | Denmark |
| Dorchester | Dorset | Bayeux | France |
| Dorchester | Dorset | Lubbecke | Germany |
| Dorking | Surrey | Gouvieux | France |
| Dorset County | Dorset | Manche | France |
| Dover | Kent | Calais | France |
| Dover | Kent | Split | Croatia |
| Down | Co Down | Stara Zagora | Bulgaria |
| Downham Market | Norfolk | Civray | France |
| Downpatrick | Co Down | Bezons | France |
| Downpatrick | Co Down | Glenview | USA |
| Downpatrick | Co Down | Listowel | Republic of Ireland |
| Drayton | Oxfordshire | Lesparre | France |
| Droitwich Spa | Worcestershire | Gyula | Hungary |
| Droitwich Spa | Worcestershire | Bad Ems | Germany |
| Droitwich Spa | Worcestershire | Bad Ems | Germany |
| Dromore | Co Down | Drumore | USA |
| Dronfield | Derbyshire | Sindelfingen | Germany |
| Droylsden | Greater Manchester | Villemomble | France |
| Drumlithie | Grampian | Couture D'Argenson | France |
| Drumquin | Co Tyrone | Pont-Remy | France |
| Dukinfield | Greater Manchester | Champagnole | France |
| Dulverton | Somerset | Artea | Spain |
| Dulverton | Somerset | Frydlant Nad Ostravici | Czech Republic |
| Dulverton | Somerset | Oriszentpeter | Hungary |
| Dulverton | Somerset | St Laurent De Neste | France |
| Dulverton | Somerset | Zwierzyniec Nad Wieprzem | Poland |
| Dumfries | Dumfries & Galloway | Gifhorn | Germany |
| Dunbar | East Lothian | Lignieres | France |
| Dunbar | East Lothian | Martinez | USA |
| Dunbartonshire And Argyll | Dunbartonshire And Argyll | Lodz Voivodship | Poland |
| Dunchurch | Warwickshire | Ferrieres En Brie | France |
| Dundee | Dundee | Alexandria | USA |
| Dundee | Dundee | Nablus | Palastine |
| Dundee | Dundee | Orleans | France |
| Dundee | Dundee | Wurzburg | Germany |
| Dundee | Dundee | Zadar | Croatia |
| Dunfermline | Fife | Sarasota | USA |
| Dunfermline | Fife | Albufeira | Portugal |
| Dunfermline | Fife | Logrono | Spain |
| Dunfermline | Fife | Trondheim | Norway |
| Dunfermline | Fife | Wilhelmshaven | Germany |
| Duns | Scottish Borders | Zagan | Poland |
| Dunscore & Penpont | Dumfries & Galloway | La Neuville D'Aumont | France |
| Dunsford | Devon | Boulon/Fresney | France |
| Dunstable | Bedfordshire | Bourgoin-Jallieu | France |
| Dunston | Lincolnshire | Trange | France |
| Durham | Durham | Durham | USA |
| Dursley | Gloucestershire | Bovenden | Germany |
| Dymchurch | Kent | Salbris | France |
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