Ó GibealláinIrish An Irish-Gaelic surname derived from a given name meaning "descendant of Gibealláin".
Ó GibneIrish 'Descendant of Gibne', a byname meaning "hound". This sept came from Counties Meath and Cavan. This was a very ancient sept but unfortunately, there are few references surviving.
O'gradyIrish Anglicized form of Ó Gradaigh, meaning "descendant of Gradaigh." Gradaigh is a personal name derived from the Irish Gaelic word grada, "the illustrious one."
OhanaJudeo-Spanish From a name meaning "son of Hanna" in Tamazight, either from the given name Hanna 1 or perhaps Tamazight ḥenna meaning "grandmother".
Ó HannáinIrish Hundreds of years ago, the Gaelic name used by the Hannant family in Ireland was Ó hAnnáin, which means "descendant of hAnnáin".... [more]
OmelchukRussian This name migrates from Russia/Belarus and has also been found in the Island of Cyprus. The name could be attributed to the surname 'Damon' disapearing as there was a 'Damon' family in the 1600's with locations unknown... [more]
OpetaiaMaori, Polynesian This name possibly came from the given name Opetaia. A notable bearer of this name is Jai Opetaia, an australian boxer born in 1995.
OppGerman Generally considered a (very) contracted form of given names that contained the Old High German element od "fortune; wealth" (or a variant thereof) and a second element that began with or contained the letter B, for example Audobald.
OpparaIndian, Tamil It is a Tamil name, denoting an agricultural occupation.
OrangeMedieval English, Medieval French, English Derived from the medieval female name, or directly from the French place name. First used with the modern spelling in the 17th century, apparently due to William, Prince of Orange, who later became William III... [more]
OrrisEnglish (Canadian) This unusual and interesting name is of Italian, Latin origin, and derives from one of the earliest Roman names, "Horatius". The name is thought to mean something connected with "hora", the Latin for "hour", but the original meaning has been lost... [more]
OrtmanGerman The surname Ortman was first found in Silesia, where the name emerged after the 14th century, where it was related to the name "Ertmar"; this name is also reflected in the place name Erdmannsdorf, found in both Saxony and Silesia... [more]
O'SheeranIrish (Rare) Anglicized form of either Ó Sírín or Ó Síoráin meaning "descendant of Sírín" and "descendant of Síoráin" respectively. Sírín and Síoráin are variants of the same name, both are derived from a diminutive of síor meaning "long-lasting".
OsterreicherGerman I was told that this surname in native Austria originates as follows. Oster means East, reich means kingdom, with er meaning native of. In old Austria there were six kingdoms, with the East one being the largest with the seat of government there... [more]
OstorojniyUkrainian Ostorojniy - a surname derived from the Russian word "cautious". It was popular in the 19th century.
OstwaldGerman from the ancient Germanic personal name Ostold composed of the elements ōst "east" (see Oest ) and Old High German walt(an) "to rule". Variant of Oswald.
O'TolanIrish The meaning of the name is unclear, but it seems to derive from the pre 13th century Gaelic O'Tuathalain suggesting that it was probably religious and may translate as "The male descendant of the follower of the lord".
O’tooleIrish O'Toole, along with Toole, comes from the Irish O Tuathail. This derives from the personal name Tuathal, meaning "ruler of the people", used by many Irish kings and heroes and accordingly incorporated into a surname in a number of distinct areas, among them south Ulster, Mayo and Kildare.
Ó ToráinIrish Meaning, ‘descendant of Torán’, a personal name formed from a diminutive of tor ‘lord’, ‘hero’, ‘champion’.
O'ToranIrish (Anglicized) Anglicized form of Gaelic Ó Toráin ‘descendant of Torán’, a personal name formed from a diminutive of tor ‘lord’, ‘hero’, ‘champion’.