Darkley, Derryadd, Derrycrin, Derrygonnelly, Derryhale, Derrylin, Derrymacash, Derrymore, Derrynaflaw, Derrynoose, Derrytrasna, Derryvore, Dervock, Desertmartin, Doagh, Dollingstown, Donagh, Donaghadee, Donaghcloney, Donaghey, Donaghmore, Donegore, Dooish, Dorsey, Douglas Bridge, Downhill, Downpatrick, Draperstown, Drinns Bay, Dromara, Dromintee, Dromore (Co. Down), Dromore (Co. Tyrone), Drumaness, Drumbeg, Drumbo, Drumlaghy, Drumlough (near Hillsborough), Drumlough (near Rathfriland), Drummullan, Drumnacanvy, Drumnakilly, Drumquin, Drumraighland, Drumsurn, Dunadry, Dundonald, Dundrod, Dundrum, Dungannon, Dungiven, Dunloy, Dunnamanagh, Dunnamore, Dunnaval, Dunseverick