| Duagh |
| Dually |
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| Dubh Lighe |
| Dublin |
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| Dublin 10 |
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| Duchray Water |
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| Duddon Bridge |
| Duddon Common |
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| Dudleston Grove |
| Dudleston Heath (Criftins) |
| Dudley |
| Dudley Hill |
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| Dudonnell River |
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| Duerley Beck |
| Duff's Hill |
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| Dufftown |
| Duffus |
| Dufton |
| Duganstown |
| Duggarry |
| Duggleby |
| Duhonw |
| Duich |
| Duirinish |
| Duisdalemore |
| Duisk |
| Duisky |
| Duke End |
| Dukesfield |
| Dukestown |
| Dukinfield |
| Dulain |
| Dulas |
| Dulcote |
| Duleek |
| Dulford |
| Dull |
| Dullatur |
| Dullingham |
| Dullingham Ley |
| Dulnain |
| Dulnain Bridge |
| Duloch |
| Duloe |
| Dulverton |
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| Dulwich Village |
| Dumbarton |
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| Dumbreck |
| Dumcrieff |
| Dumfea |
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| Dumpinghill |
| Dumpling Green |
| Dumplington |
| Dumpton |
| Dun |
| Dun Boreraig |
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| Dunadry |
| Dunalastair |
| Dunamuck |
| Dunan |
| Dunandhu |
| Dunans |
| Dunany |
| Dunball |
| Dunbar |
| Dunbeath |
| Dunbeath Water |
| Dunbeg |
| Dunbell |
| Dunblane |
| Dunbog |
| Dunboyne |
| Dunbridge |
| Dunbyrne |
| Duncannon |
| Duncansby Head |
| Duncansclett |
| Duncanston |
| Duncanstone |
| Dunchideock |
| Dunchurch |
| Duncombe |
| Duncormick |
| Duncote |
| Duncow |
| Duncrievie |
| Duncton |
| Dundalk |
| Dundee |
| Dunderrew |
| Dunderry |
| Dundeugh |
| Dundian |
| Dundon |
| Dundon Hayes |
| Dundonald |
| Dundonnell |
| Dundoogan |
| Dundoran |
| Dundraw |
| Dundrennan |
| Dundridge |
| Dundrod |
| Dundrum |
| Dundry |
| Dunduff |
| Dundyvan |
| Duneaton Water |
| Dunecht |
| Dunfanaghy |
| Dunfermline |
| Dunfield |
| Dunford Bridge |
| Dungannon |
| Dunganstown |
| Dungarvan |
| Dungate |
| Dunge |
| Dungeness |
| Dungiven |
| Dungloe |
| Dungourney |
| Dungworth |
| Dunham on Trent |
| Dunham Town |
| Dunham Woodhouses |
| Dunhampstead |
| Dunhampton |
| Dunhill |
| Dunholme |
| Dunhum-On-The-Hill |
| Dunino |
| Dunipace |
| Dunira |
| Duniry |
| Dunk's Green |
| Dunkeld |
| Dunkenny |
| Dunkerrin |
| Dunkerton |
| Dunkeswell |
| Dunkeswick |
| Dunkineely |
| Dunkirk |
| Dunkitt |
| Dunks, The |
| Dunlaoire |
| Dunlavin |
| Dunleer |
| Dunlewy |
| Dunley |
| Dunloe |
| Dunlop |
| Dunloy |
| Dunmanus |
| Dunmanway |
| Dunmere |
| Dunmoon |
| Dunmore |
| Dunmore East |
| Dunmurry |
| Dunn Street |
| Dunnamaggan |
| Dunnamanagh |
| Dunnamore |
| Dunnerholme |
| Dunnet |
| Dunnet Head |
| Dunnichen |
| Dunnikier |
| Dunning |
| Dunningstown |
| Dunnington |
| Dunningwell |
| Dunnockshaw |
| Dunnose |
| Dunnsheath |
| Dunollie |
| Dunoon |
| Dunquin |
| Dunragit |
| Dunrostan |
| Duns |
| Duns Tew |
| Dunsa |
| Dunsby |
| Dunscar |
| Dunscore |
| Dunscroft |
| Dunsdale |
| Dunsden Green |
| Dunseverick |
| Dunsfold Common |
| Dunsfold Green |
| Dunsford |
| Dunshalt |
| Dunshaughlan |
| Dunshaughlin |
| Dunsill |
| Dunslea |
| Dunsley |
| Dunsmore |
| Dunsop Bridge |
| Dunstable |
| Dunstal |
| Dunstall |
| Dunstall Common |
| Dunstall Green |
| Dunstall Hill |
| Dunstan |
| Dunster |
| Dunston |
| Dunston Heath |
| Dunston Hill |
| Dunstone |
| Dunsville |
| Dunswell |
| Dunsyre |
| Dunterton |
| Dunthrop |
| Duntisbourne Abbots |
| Duntisbourne Leer |
| Duntisbourne Rouse |
| Duntish |
| Duntocher |
| Dunton |
| Dunton Bassett |
| Dunton Green |
| Dunton Patch |
| Duntulm |
| Dunure |
| Dunvant |
| Dunvegan |
| Dunveth |
| Dunwear |
| Dunwich |
| Dunwich River |
| Dunwood |
| Durdar |
| Durgan |
| Durgates |
| Durham |
| Durisdeer |
| Durisdeermill |
| Durkar |
| Durleigh |
| Durleigh Brook |
| Durleighmarsh |
| Durley |
| Durley Street |
| Durlock |
| Durlow Common |
| Durlston Head |
| Durn |
| Durnamuck |
| Durness |
| Durnfield |
| Durno |
| Durns Town |
| Duror |
| Durrant Green |
| Durrants |
| Durrington |
| Durrington-on-Sea Sta |
| Durris Ho |
| Durrisdale |
| Durrow |
| Durrus |
| Dursley |
| Dursley Cross |
| Durston |
| Durweston |
| Dury |
| Duryard |
| Duston |
| Dutch River |
| Dutch Village |
| Dutchmans Cap (Bac Mor) |
| Duthil |
| Dutlas |
| Duton Hill |
| Dutson |
| Dutton |
| Duxford |
| Duxmoor |
| Dwyfach |
| Dwyfor |
| Dwygyfylchi |
| Dwyran |
| Dwyrhiw |
| Dwyryd |
| Dyan |
| Dyce |
| Dyche |
| Dye House |
| Dyer's Common |
| Dyer's Green |
| Dyffryn |
| Dyffryn (Valley) |
| Dyffryn Ardudwy |
| Dyffryn Cellwen |
| Dyffryn-bern |
| Dyfi |
| Dyfrdwy |
| Dyke |
| Dykehead |
| Dykeside |
| Dylife |
| Dymchurch |
| Dymock |
| Dyrham |
| Dysart |
| Dyserth |
| Dysynni |