Daley
Irish Gaelic
A counsellor.

Daly
Gaelic
advisor

Dalziel
Scottish Gaelic
From the little field.

Dara
Irish Gaelic
A son of oak. A boy or girl's name.

Darby
Irish Gaelic
Free from envy. A boy or girl's name.

Declan
Irish Gaelic
The name of a 5th-century bishop.

Delaney
Gaelic
The challenger's descendant.

Dempsey
Irish Gaelic
The proud one.

Derby
Irish Gaelic
Free from envy.

Dermot
Irish Gaelic
Envy free.

Derry
Irish Gaelic
Redheaded, and the name of an Irish county. Also see Derek.

Desmond
Irish Gaelic
The world.

Devlin
Irish Gaelic
Fierce bravery.

Diarmad
Scottish Gaelic
Without envy.

Diarmid
Irish Gaelic
Without envy.

Dolan
Irish Gaelic
Black-haired.

Don
Scottish Gaelic
The ruler of the world. From the name Donald and other `Don' names.

Donahue
Irish Gaelic
A warrior dressed in brown.

Donald
Scottish Gaelic
The ruler of the world.

Donnelly
Gaelic
The dark brave one.

Donnie
Scottish Gaelic
The ruler of the world. From the name Donald and other `Don' names.

Donny
Scottish Gaelic
The ruler of the world. From the name Donald and other `Don' names.

Donoghue
Irish Gaelic
A warrior dressed in brown.

Donohue
Irish Gaelic
A warrior dressed in brown.

Donovan
Irish Gaelic
Dark warrior.

Dooley
Irish Gaelic
A dark hero.

Doran
Irish Gaelic
A wanderer or stranger.

Dougal
Gaelic
A dark stranger.

Douglas
Scottish Gaelic
From the dark stream.

Dow
Irish Gaelic
Black-haired.

Doyle
Gaelic
A dark stranger.

Duane
Irish Gaelic
A little dark one.

Duff
Scottish Gaelic
Dark-haired, or of a dark complexion.

Dugal
Gaelic
A dark stranger.

Dugald
Gaelic
A dark stranger.

Dugan
Gaelic
Dark-skinned.

Duglas
Gaelic
dark stranger

Dunbar

Gaelic
A dark branch.

Duncan
Scottish Gaelic
Dark skinned warrior.

Dunmore
Scottish Gaelic
From the fortress on the hill.

Dwaine
Irish Gaelic
A little dark one.

Dwane
Irish Gaelic
A little dark one.

Dwayne
Irish Gaelic
A little dark one.