| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Dandolkas | city | Lu | Ireland | 54.00 | -6.42 | 3 | 33576 |
| Dillonstown Cross | city | Lu | Ireland | 53.87 | -6.34 | 52 | 2860 |
| Doon Jialgan | city | Lu | Ireland | 54.00 | -6.42 | 3 | 33576 |
| Dowdallshill | city | Lu | Ireland | 54.02 | -6.39 | 3 | 31562 |
| Droeda | city | Lu | Ireland | 53.72 | -6.35 | 3 | 33500 |
| Droghad Aah | city | Lu | Ireland | 53.72 | -6.35 | 3 | 33500 |
| Drogheda | city | Lu | Ireland | 53.72 | -6.35 | 3 | 33500 |
| Drogheda - Droichead Átha | city | Lu | Ireland | 53.72 | -6.35 | 3 | 33500 |
| Droichead an Chnoic | city | Lu | Ireland | 53.97 | -6.49 | 78 | 5028 |
| Droichead Átha | city | Lu | Ireland | 53.72 | -6.35 | 3 | 33500 |
| Droim Bile | city | Lu | Ireland | 54.06 | -6.48 | 173 | 6041 |
| Droim Chora | city | Lu | Ireland | 53.86 | -6.38 | 75 | 4403 |
| Droim Ineasclainn | city | Lu | Ireland | 53.93 | -6.41 | 6 | 11084 |
| Droim Ing | city | Lu | Ireland | 53.85 | -6.43 | 88 | 3145 |
| Dromin | city | Lu | Ireland | 53.85 | -6.43 | 88 | 3145 |
| Dromiskin | city | Lu | Ireland | 53.93 | -6.41 | 6 | 11084 |
| Drumbilla | city | Lu | Ireland | 54.06 | -6.48 | 173 | 6041 |
| Drumcar | city | Lu | Ireland | 53.86 | -6.38 | 75 | 4403 |
| Drumgowna | city | Lu | Ireland | 53.95 | -6.60 | 160 | 2666 |
| Drumin | city | Lu | Ireland | 53.85 | -6.43 | 88 | 3145 |
| Drummullagh | city | Lu | Ireland | 54.09 | -6.26 | 3 | 6442 |
| Dunany | city | Lu | Ireland | 53.86 | -6.28 | 19 | 1652 |
| Dundalk | city | Lu | Ireland | 54.00 | -6.42 | 3 | 33576 |
| Dungooly Cross Roads | city | Lu | Ireland | 54.07 | -6.46 | 177 | 8489 |
| Dunleer | city | Lu | Ireland | 53.84 | -6.40 | 144 | 3986 |
| Dún ??ine | city | Lu | Ireland | 53.86 | -6.28 | 19 | 1652 |
| Dún Dealgan | city | Lu | Ireland | 54.00 | -6.42 | 3 | 33576 |
| Dún Léire | city | Lu | Ireland | 53.84 | -6.40 | 144 | 3986 |