O'Sullivan History, Family Crest & Coats of Arms 

Origins Available: 
  Ireland-Alt 
  Ireland 


The old Gaelic name used by the O'Sullivan family in Ireland was Ó Suileabhain, which is partially derived from the word "suil," which means "eye." The surname probably means either one-eyed or hawk-eyed.

Early Origins of the O'Sullivan family

The surname O'Sullivan was first found in the territory of Cahir in County Tipperary (Irish: Thiobraid Árann), established in the 13th century in South-central Ireland, in the province of Munster. The Sullivan spelling is by far the most common name in Munster, and is predominantly found in the counties of Cork and Kerry, with a smaller but still significant population in County Limerick.

Early History of the O'Sullivan family

This web page shows only a small excerpt of our O'Sullivan research. Another 127 words (9 lines of text) covering the years 1172, 1590, 1660, 1700, 1745, 1748, 1784 and 1837 are included under the topic Early O'Sullivan History in all our PDF Extended History products and printed products wherever possible.

O'Sullivan Spelling Variations

Spelling variations of this family name include: O'Sullivan, Sullivan and others.

Early Notables of the O'Sullivan family

Notable amongst the family name at this time was

O'Sullivan World Ranking

In the United States, the name O'Sullivan is the 3,853rd most popular surname with an estimated 7,461 people with that name. 1 However, in Australia, the name O'Sullivan is ranked the 329th most popular surname with an estimated 10,905 people with that name. 2 And in New Zealand, the name O'Sullivan is the 278th popular surname with an estimated 2,199 people with that name. 3 The United Kingdom ranks O'Sullivan as 546th with 11,889 people. 4



O'Sullivan migration to the United States +

Some of the first settlers of this family name were:

O'Sullivan Settlers in United States in the 19th Century

O'Sullivan migration to Canada +

Some of the first settlers of this family name were:

O'Sullivan Settlers in Canada in the 19th Century

O'Sullivan migration to Australia +

Emigration to Australia followed the First Fleets of convicts, tradespeople and early settlers. Early immigrants include:

O'Sullivan Settlers in Australia in the 19th Century

O'Sullivan migration to New Zealand +

Emigration to New Zealand followed in the footsteps of the European explorers, such as Captain Cook (1769-70): first came sealers, whalers, missionaries, and traders. By 1838, the British New Zealand Company had begun buying land from the Maori tribes, and selling it to settlers, and, after the Treaty of Waitangi in 1840, many British families set out on the arduous six month journey from Britain to Aotearoa to start a new life. Early immigrants include:

O'Sullivan Settlers in New Zealand in the 19th Century

Contemporary Notables of the name O'Sullivan (post 1700) +





The O'Sullivan Motto +

The motto was originally a war cry or slogan. Mottoes first began to be shown with arms in the 14th and 15th centuries, but were not in general use until the 17th century. Thus the oldest coats of arms generally do not include a motto. Mottoes seldom form part of the grant of arms: Under most heraldic authorities, a motto is an optional component of the coat of arms, and can be added to or changed at will; many families have chosen not to display a motto.

Motto: Lamh foistenach abú
Motto Translation: The steady hand to victory.





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