Irish Surname Index, link your name to an Irish Tartan

Irish Name Index

A B C D E F G H I J K L Mac M N O P Q R S T U V W X Y Z

Look up your family name in Red, the Clan Tartan, Affilation or Sept is shown in Blue.
Click on the link to see what your Tartan looks like, and to order your Tartan

O	Family Name	Clan Tartan / Affiliation / Sept
	O'Baine	Barry, or Cork
	O'Baoghill	Boyle, or Fermanagh
	O'Beargha	Berry
	O'Boyle	Boyle, or Fermanagh
	O'Branain	Brennan, or Galway, or Kerry
	O'Briain	O'Brien, or Tipperary
	O'Brien	O'Brien
	O'Broin	Byrne, or Wicklow
	O'Bryne	Byrne, or Wicklow
	O'Casside	Cassidy, or Londonderry
	O'Caoimh	O'Keffe, or Cork
	O'Carroll	Carrol, or Kerry, or Kilkenny, or Offaly
	O'Casalaigh	Costello, or Cork
	O'Casey	Casey, or Roscommon, or Dublin
	O'Cathain	Keane
	O'Cathavnaigh	Kearney, or Ofally, or Cork
	O'Cathasaigh	Casey, or Rosscommon, or Dublin
	O'Cearbhaill	Carroll
	O'Cearnaigh	Kearney
	O'Cein	Keane
	O'Cinneide	Kennedy, or Tippeary
	O'Cleirigh	Cleary, or Antrim, or Galway
	O'Cochlain	Coughlan
	O'Coiglyh	Quigley, or Monaghan
	O'Coingheallaigh	Connelly, or Mayo, or Monaghan, or Fermanagh
	O'Coinn	Quinn, or Clare, or Limerick
	O'Conaill	O'Connell, or Kerry, or Londonderry, or Limerick
	O'Conghalaigh	Connolly, or Mayo, or Monaghan, or Fermanagh
	O'Connor	Dress O'Connor, or Ulster, or Tipperrary
	O'Cruadhlaoich	Crowley, or Rosscommon
	O'Cuileamhain	Curren, or Laois, or Waterford
	O'Dalaigh	Daly, or Cork
	O'Daly	Daly, or Kerry, or Cavan, or Clare, or Cork
	O'Doherty	Donegal
	O'Diomasaigh	Dempsey, or Ofally, or Laois
	O'Dochartaigh	Doherty
	O'Doherty	Doherty
	O'Doinn	Dunne
	O'Domhnaill	O'Donnell, or Donegal, or Tipperary
	O'Donnchadha	O'Donoghue, or Kilkenny
	O'Donoghue	O'Donoghue
	O'Donudubhain	Donovan, or Limerick
	O'Donnel	Clare or Donegal
	O'Donnghaile	Donnelly, or Tyrone
	O'Donovan	Donovan, or Cork, or Limerick
	O'Dowd	Dowd, or Mayo, or Sligo
	O'Dowling	Dowling, or Laois
	O'Doyne	Dunne
	O'Drain	Modern MacDonald
	O'Dubhagain	Duggan
	O'Dubhda	Dowd
	O'Dubhghaill	Doyle, or Wicklow, or Galway, or Limerick
	O'Dubgtaigh	Duffy
	O'Dubhuidhis	Duggan
	O'Duffy	Duffy, or Mayo, or Donegal, or Rosscommon, or Monaghan
	O'Dugan	Duggan
	O'Duibhis	Dwyer, or Tipperary
	O'Duilleain	Dillon, or Rosscommon, or Meath
	O'Dwyer	Dwyer, or Tipperary
	O'Echtigerna	Aherne, or Clare
	O'Faolain	Whelan
	O'Farrell	Farrell, or Longford
	O'Fathaigh	Fahy, or Galway
	O'Fionnagain	Finnegan, or Mayo
	O'Flannagain	Finnegan, or Mayo
	O'Floinn	Flynn
	O'Flynn	Flynn, or Antrim, or Mayo, or Rosscommon
	O'Gallagher	Gallagher, or Donegal
	O'Galleobhar	Gallagher, or Donegal
	O'Hagerin	Aherne, or Clare
	O'Haraih	O'Hara
	O'Hea	Egan, or Kerry, or Tipperary, or Galway
	O'Heaghra	O'Hara
	O'Heidirseoil	Driscoll, or Cork
	O'Hleidhe	Hickey, or Tipperary
	O'Higgins	Higgins
	O'Hogain	Hogan, or Tipperary, or Clare
	O'Hogan	Hogan, or Tipperary, or Clare
	O'Huallachain	Nolan, or Carlow
	O'Huigin	Higgins

Irish Name Index

O

Family Name

Clan Tartan / Affiliation / Sept

O'Baine

Barry, or Cork

O'Baoghill

Boyle, or Fermanagh

O'Beargha

Berry

O'Boyle

Boyle, or Fermanagh

O'Branain

Brennan, or Galway, or Kerry

O'Briain

O'Brien, or Tipperary

O'Brien

O'Brien

O'Broin

Byrne, or Wicklow

O'Bryne

Byrne, or Wicklow

O'Casside

Cassidy, or Londonderry

O'Caoimh

O'Keffe, or Cork

O'Carroll

Carrol, or Kerry, or Kilkenny, or Offaly

O'Casalaigh

Costello, or Cork

O'Casey

Casey, or Roscommon, or Dublin

O'Cathain

Keane

O'Cathavnaigh

Kearney, or Ofally, or Cork

O'Cathasaigh

Casey, or Rosscommon, or Dublin

O'Cearbhaill

Carroll

O'Cearnaigh

Kearney

O'Cein

Keane

O'Cinneide

Kennedy, or Tippeary

O'Cleirigh

Cleary, or Antrim, or Galway

O'Cochlain

Coughlan

O'Coiglyh

Quigley, or Monaghan

O'Coingheallaigh

Connelly, or Mayo, or Monaghan, or Fermanagh

O'Coinn

Quinn, or Clare, or Limerick

O'Conaill

O'Connell, or Kerry, or Londonderry, or Limerick

O'Conghalaigh

Connolly, or Mayo, or Monaghan, or Fermanagh

O'Connor

Dress O'Connor, or Ulster, or Tipperrary

O'Cruadhlaoich

Crowley, or Rosscommon

O'Cuileamhain

Curren, or Laois, or Waterford

O'Dalaigh

Daly, or Cork

O'Daly

Daly, or Kerry, or Cavan, or Clare, or Cork

O'Doherty

Donegal

O'Diomasaigh

Dempsey, or Ofally, or Laois

O'Dochartaigh

Doherty

O'Doherty

Doherty

O'Doinn

Dunne