| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Duagh | city | Ciarrai | Ireland | 52.4127778 | -9.3894444 | 255 | 2449 |
| Dubhath | city | Ciarrai | Ireland | 52.4127778 | -9.3894444 | 255 | 2449 |
| Dubháth | city | Ciarrai | Ireland | 52.4127778 | -9.3894444 | 255 | 2449 |
| Dublin | city | Tiobraid Arann | Ireland | 52.5744444 | -7.5502778 | 501 | 2860 |
| Dublin | city | Baile Atha Cliath | Ireland | 53.3330556 | -6.2488889 | 29 | 88981 |
| Dublin Pike | city | Corcaigh | Ireland | 51.9302778 | -8.4641667 | 259 | 5209 |
| Ducalla | city | Ciarrai | Ireland | 51.7833333 | -10.3333333 | 0 | 422 |
| Dufty's Cross Roads | city | Cill Dara | Ireland | 53.3905556 | -6.9991667 | 308 | 6707 |
| Duftyʼs Cross Roads | city | Cill Dara | Ireland | 53.3905556 | -6.9991667 | 308 | 6707 |
| Duggarry | city | Ros Comain | Ireland | 53.3866667 | -8.0736111 | 452 | 1862 |
| Duke Street | city | Cill Dara | Ireland | 52.9341667 | -6.9288889 | 209 | 5728 |
| Duleek | city | An Mhi | Ireland | 53.6566667 | -6.4191667 | 114 | 4481 |
| Dun | city | County Limerick | Ireland | 52.6036111 | -8.2444444 | 301 | 4463 |
| Dun An Ri | city | An Cabhan | Ireland | 53.9080556 | -6.8055556 | 298 | 3439 |
| Dun Ard | city | Cill Mhantain | Ireland | 53.0191667 | -6.6147222 | 859 | 4571 |
| Dun Canann | city | Loch Garman | Ireland | 52.2202778 | -6.9169444 | 9 | 2962 |
| Dun Chaoin | city | Ciarrai | Ireland | 52.1313889 | -10.4572222 | 229 | 1362 |
| Dun Cionnaola | city | County Donegal | Ireland | 54.6308333 | -8.3705556 | 3 | 1617 |
| Dun Damh | city | County Donegal | Ireland | 55.2666667 | -7.5 | 88 | 1318 |
| Dun Dealgan | city | County Louth | Ireland | 54 | -6.4166667 | 3 | 9809 |
| Dun Fionnachaidh | city | County Donegal | Ireland | 55.1833333 | -7.9666667 | 52 | 1383 |
| Dun Gar | city | Ros Comain | Ireland | 53.8666667 | -8.4 | 246 | 1840 |
| Dun Garbhan | city | Port Lairge | Ireland | 52.0880556 | -7.6252778 | 3 | 4240 |
| Dun Laoghaire | city | Baile Atha Cliath | Ireland | 53.2925 | -6.1286111 | 3 | 40100 |
| Dun Leire | city | County Louth | Ireland | 53.835 | -6.3961111 | 144 | 9464 |
| Dun Luain | city | Cill Mhantain | Ireland | 53.0555556 | -6.7038889 | 521 | 5571 |
| Dun Luiche | city | County Donegal | Ireland | 55.0166667 | -8.1 | 515 | 2304 |
| Dun Manmhai | city | Corcaigh | Ireland | 51.7166667 | -9.1166667 | 249 | 5233 |
| Dun Mor | city | Gaillimh | Ireland | 53.6166667 | -8.7333333 | 226 | 2843 |
| Dun Mor | city | Port Lairge | Ireland | 52.1513889 | -6.9861111 | 0 | 1436 |
| Dun Seachlainn | city | An Mhi | Ireland | 53.5125 | -6.54 | 282 | 4176 |
| Dun an Uchta | city | Gaillimh | Ireland | 53.1975 | -8.1325 | 223 | 2792 |
| Dun ar Aill | city | Corcaigh | Ireland | 52.2166667 | -8.5833333 | 269 | 5179 |
| Dun na Sead | city | Corcaigh | Ireland | 51.4833333 | -9.3666667 | 190 | 2413 |
| Dun na nGall | city | County Donegal | Ireland | 54.65 | -8.1166667 | 78 | 2115 |
| Dunaff | city | County Donegal | Ireland | 55.2666667 | -7.5 | 88 | 1318 |
| Dunany | city | County Louth | Ireland | 53.8580556 | -6.2791667 | 19 | 4637 |
| Dunavinally | city | County Leitrim | Ireland | 53.9911111 | -7.8305556 | 246 | 1394 |
| Dunbeacon | city | | Ireland | 51.5833333 | -9.5666667 | 321 | 4482 |
| Dunboyne | city | | Ireland | 53.4 | -6.4666667 | 249 | 33261 |
| Dunbrin | city | Cill Dara | Ireland | 52.9688889 | -6.9941667 | 200 | 5807 |
| Dunbulloge Bridge | city | Corcaigh | Ireland | 51.9747222 | -8.4630556 | 492 | 5205 |
| Dunbur | city | Cill Mhantain | Ireland | 52.9563889 | -6.0194444 | 0 | 1889 |
| Dunbyrne | city | Cill Dara | Ireland | 53.2275 | -6.8580556 | 488 | 7161 |
| Duncannon | city | Loch Garman | Ireland | 52.2202778 | -6.9169444 | 9 | 2962 |
| Duncannon Bridge | city | Corcaigh | Ireland | 52.0852778 | -9.1933333 | 469 | 4549 |
| Duncormick | city | Loch Garman | Ireland | 52.2252778 | -6.6458333 | 13 | 3026 |
| Dundalk | city | County Louth | Ireland | 54 | -6.4166667 | 3 | 9809 |
| Dunderrow | city | Corcaigh | Ireland | 51.7283333 | -8.6188889 | 0 | 5227 |
| Dunderry | city | An Mhi | Ireland | 53.6058333 | -6.7741667 | 242 | 4169 |
| Dundian Cross Roads | city | County Monaghan | Ireland | 54.3555556 | -7.055556 | 482 | 3768 |
| Dundonnell | city | Ros Comain | Ireland | 53.3833333 | -8.1666667 | 259 | 1973 |
| Dundoogan | city | Gaillimh | Ireland | 53.3411111 | -8.3586111 | 246 | 2871 |
| Dundrannan Cross Roads | city | County Monaghan | Ireland | 54.1452778 | -6.9919444 | 416 | 3474 |
| Dundrum | city | Tiobraid Arann | Ireland | 52.5605556 | -8.0422222 | 265 | 2860 |
| Dundrum | city | Baile Atha Cliath | Ireland | 53.2922222 | -6.2669444 | 246 | 102164 |
| Duneany Cross Roads | city | Cill Dara | Ireland | 53.1113889 | -6.9805556 | 249 | 7180 |
| Duneen | city | Corcaigh | Ireland | 51.5775 | -8.8816667 | 0 | 2492 |
| Duneena | city | An Cabhan | Ireland | 53.9430556 | -7.0141667 | 485 | 2426 |
| Dunfanaghy | city | County Donegal | Ireland | 55.1833333 | -7.9666667 | 52 | 1383 |
| Dunfierth Cross Roads | city | Cill Dara | Ireland | 53.3916667 | -6.8344444 | 291 | 6129 |
| Dunganstown | city | Loch Garman | Ireland | 52.3427778 | -6.9744444 | 141 | 3705 |
| Dungarvan | city | Port Lairge | Ireland | 52.0880556 | -7.6252778 | 3 | 4240 |
| Dungarvan | city | Cill Chainnigh | Ireland | 52.5897222 | -7.0872222 | 213 | 3309 |
| Dungeagan | city | Ciarrai | Ireland | 51.8333333 | -10.25 | 0 | 869 |
| Dunglave | city | An Cabhan | Ireland | 54.1611111 | -7.7066667 | 259 | 2437 |
| Dungloe | city | County Donegal | Ireland | 54.9511111 | -8.3591667 | 452 | 1931 |
| Dunglow | city | County Donegal | Ireland | 54.9511111 | -8.3591667 | 452 | 1931 |
| Dungooly Cross Roads | city | County Louth | Ireland | 54.0675 | -6.4636111 | 177 | 9043 |
| Dungourney | city | Corcaigh | Ireland | 51.9683333 | -8.0972222 | 347 | 5205 |
| Dunheeda | city | An Mhi | Ireland | 53.8880556 | -6.7483333 | 314 | 4070 |
| Dunhill | city | Port Lairge | Ireland | 52.1697222 | -7.2569444 | 167 | 4293 |
| Duniry | city | Gaillimh | Ireland | 53.1316667 | -8.4041667 | 229 | 2885 |
| Dunkerrin | city | County Offaly | Ireland | 52.9122222 | -7.9088889 | 498 | 2770 |
| Dunkineely | city | County Donegal | Ireland | 54.6308333 | -8.3705556 | 3 | 1617 |
| Dunkitt | city | Cill Chainnigh | Ireland | 52.2888889 | -7.1436111 | 78 | 3936 |
| Dunlavin | city | Cill Mhantain | Ireland | 53.0555556 | -6.7038889 | 521 | 5571 |
| Dunleary | city | Baile Atha Cliath | Ireland | 53.2925 | -6.1286111 | 3 | 40100 |
| Dunleer | city | County Louth | Ireland | 53.835 | -6.3961111 | 144 | 9464 |
| Dunlewy | city | County Donegal | Ireland | 55.0166667 | -8.1 | 515 | 2304 |
| Dunmain Cross Roads | city | Loch Garman | Ireland | 52.3036111 | -6.8752778 | 200 | 4054 |
| Dunmanoge | city | Cill Dara | Ireland | 52.8908333 | -6.9197222 | 209 | 4798 |
| Dunmanus | city | Corcaigh | Ireland | 51.5377778 | -9.6783333 | 298 | 2393 |
| Dunmanway | city | Corcaigh | Ireland | 51.7166667 | -9.1166667 | 249 | 5233 |
| Dunmaurice | city | County Monaghan | Ireland | 54.1352778 | -6.8694444 | 446 | 3487 |
| Dunmoran | city | Sligeach | Ireland | 54.2641667 | -8.7222222 | 45 | 1314 |
| Dunmore | city | Gaillimh | Ireland | 53.6166667 | -8.7333333 | 226 | 2843 |
| Dunmore | city | Port Lairge | Ireland | 52.1513889 | -6.9861111 | 0 | 1436 |
| Dunmore East | city | Port Lairge | Ireland | 52.1513889 | -6.9861111 | 0 | 1436 |
| Dunmuckrum | city | County Donegal | Ireland | 54.4861111 | -8.2147222 | 196 | 1714 |
| Dunn's Cross Roads | city | Cill Chainnigh | Ireland | 52.8130556 | -7.1227778 | 803 | 3178 |
| Dunnaloo | city | County Donegal | Ireland | 54.7861111 | -7.5583333 | 173 | 2873 |
| Dunnamaggan | city | Cill Chainnigh | Ireland | 52.5047222 | -7.2972222 | 223 | 3315 |
| Dunnʼs Cross Roads | city | Cill Chainnigh | Ireland | 52.8130556 | -7.1227778 | 803 | 3178 |
| Dunowen | city | Corcaigh | Ireland | 51.55 | -8.9166667 | 0 | 3100 |
| Dunquin | city | Ciarrai | Ireland | 52.1313889 | -10.4572222 | 229 | 1362 |
| Dunrally Bridge | city | Laois | Ireland | 53.0630556 | -7.0572222 | 216 | 5048 |
| Dunraymond | city | County Monaghan | Ireland | 54.1738889 | -6.9127778 | 495 | 3483 |
| Dunshane | city | Cill Dara | Ireland | 53.1538889 | -6.6961111 | 383 | 7141 |
| Dunshaughlin | city | An Mhi | Ireland | 53.5125 | -6.54 | 282 | 4176 |
| Dunsink | city | | Ireland | 53.3833333 | -6.3333333 | 39 | 101763 |
| Dunsland | city | Corcaigh | Ireland | 51.9075 | -8.3797222 | 78 | 5196 |
| Duntryleague | city | County Limerick | Ireland | 52.405 | -8.3533333 | 498 | 5134 |
| Duras | city | Corcaigh | Ireland | 51.6166667 | -9.5333333 | 232 | 4818 |
| Durlas | city | Tiobraid Arann | Ireland | 52.6819444 | -7.8022222 | 328 | 2850 |
| Durnesh | city | County Donegal | Ireland | 54.5697222 | -8.1738889 | 246 | 1490 |
| Durrow | city | Port Lairge | Ireland | 52.1444444 | -7.5177778 | 246 | 4120 |
| Durrow | city | Laois | Ireland | 52.8441667 | -7.3925 | 314 | 2856 |
| Durrow Cross Roads | city | Port Lairge | Ireland | 52.1444444 | -7.5177778 | 246 | 4120 |
| Durrus | city | Corcaigh | Ireland | 51.6166667 | -9.5333333 | 232 | 4818 |
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