| Families |
Ethnic Group |
Branch of |
| Currie |
|
MacPherson |
| Currie |
|
O'Daly |
| Currie |
IVL - Scotland |
|
| Cusack |
IVL |
|
| Cusack |
Normans |
|
| Dallas, Doles |
|
MacPherson |
| Dalton |
Normans |
|
| Darcy |
IVL - Connacht |
|
| Darcy |
Normans |
|
| Darditz, Dardes |
Normans |
|
| Davidson |
Erainn |
|
| Davis |
|
O'Morchoe |
| Davis |
IVL - Ireland |
|
| Daw |
|
O'Dea |
| Deane |
|
Tribes of Galway |
| Deane |
IVL - Donegal, Tipperary |
|
| de Courcy |
Normans |
|
| Deignan, Dignam |
|
O'Duigenan |
| Dewar |
|
MacNab |
| Dewar |
|
Menzies |
| Dillon |
IVL |
|
| Dillon |
Normans |
|
| Dinnes |
|
Innes |
| Dochart |
|
MacGregor |
| Donachie |
|
Robertson |
| Donaldson, Donald |
|
MacDonald (Clan Donald) |
| Donleavy |
|
Buchanan |
| Donnelson, Donillson |
|
MacDonald (Clan Donald) |
| Doody |
|
O'Dowd |
| Dougherty |
|
O'Doherty |
| Douglas |
Normans |
|
| Dove, Dow |
|
Buchanan |
| Downing |
|
O'Dinneen |
| Downing |
IVL - Cork, Kerry, Limerick |
|
| Doyle (Roscommon) |
|
MacDougal |
| Doyne |
|
O'Dunne |
| Drummond |
Cruithne |
|
| Drummond |
IVL - Ireland |
|
| Duff |
IVL - Ireland, Scotland |
|
| Dunbar |
Gaels |
|
| Duncan |
IVL - Ireland |
|
| Duncan, Duncanson |
|
Robertson |
| Dundas |
Gaels |
|
| Dunning |
|
O'Dinneen |
| Dunning |
IVL - Britain |
|
| Durie |
Cruithne |
|
| Dyce |
|
Skene |
| Elder |
|
MacPherson |
|
