O'Dunn Coat of Arms Record & History

A record of documented arms, meaning and origin, researched for the O'Dunn family of Britain.

Reg. 7343 · Britain, M–O

Coat of Arms & Family Crest Details

Where the O'Dunn Arms Were Recorded

Kent
Map of Britain showing where the O'Dunn arms are recorded

The O'Dunn arms were recorded in Britain, c. 1700.

Arms such as these were typically recorded in Kent.

Kent sits between London and the short crossing to Europe, and the trade passing through made it wealthy. Merchant families bought land with that money, and it was landowners who took coats of arms.

This is where the arms were entered in the register. Families often moved to other parts of the country, so the same name can turn up in more than one region.

Region
Kent
First recorded
1700

Granting Authority for the O'Dunn Arms

Arms of College of Arms
College of Arms Sodacan · CC BY-SA 3.0
Authority

College of Arms

1484-present

The body that granted and recorded arms in Britain in this period.

Portrait of William III of England
William III of England
Sovereign of the period

William III of England

1694–1702

Reigning in Britain when the O'Dunn arms are first recorded.

How Arms Worked in Britain

English heraldry allowed arms to be shared by all legitimate descendants of the original owner. These symbols were treated as personal property that moved through the generations to all children. While the eldest son kept the original design, other family members could use the same shield without needing to change it or register their own unique versions.

Granting authority
The College of Arms in London has regulated the use of coats of arms throughout England and Wales since 1484.
How they got arms
Families typically obtained their coats of arms through a formal grant from the Crown or by proving their ancient right to them.
Where arms were recorded
All official coats of arms are recorded in the registers kept at the College of Arms, which date back to the fifteenth century.
The family's standing
Recorded among the armigerous families of Britain.

Origin & History of the O'Dunn Family in Britain

The surname O’Dunn is an anglicized variation of the Gaelic name Ó Duinn, which historically identifies descendants of a person named Dunn. While the name is deeply rooted in Irish heritage, the presence of the family in Kent by the year 1700 suggests a significant migration during a period of great social and political movement across the British Isles. During the seventeenth and eighteenth centuries, many families moved from Ireland to England for work, trade, or to escape the instability caused by land conflicts and religious tensions. Settling in a region like Kent, which was a hub for agriculture and maritime commerce, indicates that these early ancestors were likely integrated into the local economy as skilled laborers or merchants. This transition from Ireland to the English countryside reflects the broader patterns of movement that defined the lives of many families during the early modern era.

Related Branches & Arms

Root word
Donn

An Old Irish term meaning dark or brown-haired.

This name
O'DunnA patronymic surname signifying descendant of the dark-haired one.
also spelled
Odun
Dunn

Documented Sources

J. B. Rietstap, Armorial Général, Gouda: G. B. van Goor Zonen, 1884–87

MacLysaght, Edward, The Surnames of Ireland, 1985

The National Archives, Kew, Records of the Prerogative Court of Canterbury, PROB 11

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