Oakes - Owens
Oaks or Oakes or Okes. Heremonian Ui Cobhthaigh Ui Felim Dal Cuinn Colla Da Crioch Siol Daim Argait (Ui Cremthainn) Clann Lugainn Sept / Family branch of the Maguires who had their territory in Co. Fermanagh in the south - west of the Ulster Province. Especially see O Darragh.
Oates. Used as a synonym for Quirke, which see / coirc (oats).
Obins or Obbyns - albanus (white) Aubin is a synonym in Co. Armagh in the south - east of the Ulster Province in the early 17th Century AD after the English confiscation of the 3,500,000 acres of the Heremonian Dal Cuinn "northern" Ui Niaill territories there and the foreign non - Catholic plantations there.
Ocre -
Mac Oda. They were in Co. Cork in Southern Munster.
Odell. Originally Odle. English origins in Co. Limerick in the mid - north - west of the Munster Province since the Mid - 17th Century AD. Incorrectly written as O Dell.
Odom -
Odlum / Adlam, which see. German English origins in Co. Offaly in the mid - west of Southern Leinster since the Mid - 17th Century AD.
Offington. See Hovenden.
Ogle -
Ogan or Oogan. Used as synonyms for Wogan, which see, in Co. Louth in the north - east of Northern Leinster and Co. Dublin in the north - east of Southern Leinster.
Ogilvie. See O Gilby.
Ogle / Ogvalid. Icelandic origins into Ireland with the Oliver Cromwell Invasion and were in Co. Louth in the north - east of Northern Leinster and are now also in the Ulster Province.
Ohoud. Heremonian Dal Cuinn Colla Uais Ui Mheic Uais
Oliver. Came from England into Co. Limerick in the mid - north - west of the Munster Province in the 17th Century AD.
Olivers -
Olligan. Used as a synonym in Co. Kildare in Central Southern Leinster for Halligan, which see.
Ollive. See Oliffe.
Olus. See Olis.
Onions. Used as a synonym for Oonihan and Union, which see.
Oolahan. Used as a variant for Hoolahan, which see, in Northern Leinster.
Oonihan. See Hounihan and Unehan.
Oonin or Oonan. Used as a variant for Houneen, which see, sometimes also corrupted to Union.
Orahoe. Used as a variant for Horohoe, which see, in Co. Longford in the north - west of Northern Leinster.
Orchard. Used in the south of Co. Tipperary in the north - east of the Munster Province as a synonym of Augher, which see.
Orchard. Used as a synonym for Archer, which see, in Co. Wexford in the south - east of Southern Leinster.
Orchard. English origins in the Ulster Province.
Organ. Used as a variant for Horgan, which see in the south of Co. Tipperary in the north - east of the Munster Province.
Mac Oriaghty. A Sept / Family branch, who had their territory and were Kings in Co. Roscommon in the east of the Connacht Province.
Ormond - Irish / Ua Ruaidh / ruad (red). A Sept / Family branch, who had their territory in Co. Cork in Desmond / Des Mhumhain / Southern Munster and nearby in Co. Waterford in the south - east of the Munster Province.
Ormsby. English origins from Lincolnshire, and were in Co. Mayo in the mid - west of the Connacht Province at the end of the 16th Century AD and are now found mainly in Northern Connacht.
Orpen - eorp / swarthy. English origins in Co. Kerry in the south - west of the Munster Province since the Mid - 17th Century AD.
Orr . Heremonian Dal Cuinn Colla Da Crioch Sept / Family branch. Ancestors: *86.Cairbre Liffeachair the 117th King of Tara / Ireland. 87.Eochy / Echu Doimhlen,*88.Murray / Muireadach Colla Da Crioch / Focrith - of the Two Countries,
Mac Orr - Irish / Mheic Ure. Heremonian Dal Cuinn "northern" Ui Niaill Cenel nEogain Sept / Family branch, who had their territory in Co. Tyrone in Central Ulster. Ancestors: *105.Donnell / Domhnall O Niall the 34th / 37th King of Aileach and 168th King of Ireland, *106.Murtough / Muirchertach O Niall,107.Flaherty / Flaithbertach O Niall the 40th / 42nd King of Aileach,
Orr. Scottish toponymic origins in Ireland since the 17th Century AD after the English confiscation of the 3,500,000 acres of the Heremonian Ui Cobhthaigh Ui Felim Dal Cuinn "northern" Ui Niaill territories in the Ulster Province and the foreign non - Catholic plantations there, and are now mainly found in the north - east of the Ulster Province.
Osbaldeston -
Osborne or Osborn. English origins in Co. Tipperary and nearby in Co. Waterford in the east of the Munster Province in 1550 AD and are now in all Provinces.
Mac Oscar. Used as a variant for Mac Cusker, which see, in the north of the Ulster Province.
Mac Ostrich. Highland Scottish origins. Gaelic / Mheic Osraic. A branch of the Clann Cameron who are not recognized as such who were in Co. Cork in Southern Munster.
Oswell or Oswald. English name taken up to anglicize their name by a branch of the Heremonian Ui Cobhthaigh Dal Cuinn 3 Colla O Husseys, which see - Irish / Ua hEodhusa in the Ulster Province. Ancestors: *86.Cairbre Liffeachair the 117th King of Tara / Ireland. 87.Eochy / Echu Doimhlen,
Otway -
O Oulahan. Heremonian Dal Cuinn Colla Da Crioch Sept / Family branch. Ancestors:*86.Cairbre Liffeachair the 117th King of Tara / Ireland. 87.Eochy / Echu Doimhlen, 88.Murray / Muireadach Colla Da Crioch - of the Two Countries.
Ounihan or Onahan. See Hounihan and Unehan.
Ousely. Heremonian Dal Cuinn Colla Uais Sept / Family branch.
Ovens / ofen (furnace). English locative origins in Co. Fermanagh in the south - west of the Ulster Province.
Owen or O Noonan - Irish / Ui nEogans. Heberian Dal gCais Ui Bloid Sept / Family branch, who had their territory in Co. Clare in the north - west of the Munster Province. Especially see O Noonan.
Mac Owen. They were in Co. Tyrone in Central Ulster. Also see Mac Keown and Owens.
Owens. Welsh name used as a synonym for Mac Keown, which see, along with Mac Owen and Owenson. Also used for Hynes and Hinds in the Ulster Province, but not in the Connacht Province.
Owgan -
Owryn -
Oxenden -
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