Symbols Used on Irish Family Crests
The Irish coat of arms is a heraldic emblem used by families to express pride in their clan and ancestral heritage. While coats of arms originated with Norman and northern European traditions, they became widely adopted among Irish families following the English invasion in the 12th century. Much like modern team colors, family crests signified membership in a particular clan or region. They served practical purposes in warfare—helping to distinguish allies from enemies, acting as rallying points, and symbolizing the cause for which warriors fought.
Traditionally, the coat of arms was displayed on tunics, armor, flags, and pendants. In battle, it was often emblazoned on shields. These designs were rich in symbolism, often reflecting alliances and connections between families. Among the most prominent motifs found on Irish family crests are the Red Hand, the walking stag, and the wild boar.
The Red Hand of Ulster
Tracing its origins back to pagan times, the Red Hand of Ulster (Lámh Dhearg Uladh in Gaelic) is most closely associated with the O’Neill clan and is sometimes called the “Hand of O’Neill.” The O’Neills are one of Ireland’s oldest families, claiming descent from a grandson of Niall Glúndubh, a 10th-century King of Ireland, and ultimately from Niall of the Nine Hostages, a legendary 4th-century high king. The Red Hand was used by the O’Neills during the Nine Years’ War, and their battle cry was “Lámh Dhearg Abú!” meaning “Red hand to victory.”
The earliest recorded use of the Red Hand on a family crest dates to 1243, when Walter de Burgh became Earl of Ulster and incorporated it into his arms. Today, the Red Hand appears on the flag of Northern Ireland and the shields of counties Cavan, Tyrone, Londonderry, Antrim, and Monaghan. Other families featuring the Red Hand on their crests include Branagan, Brennan, Byrne, Cullen, Daly, Daugherty, Fox, Guinness, McNeil, Neal or O’Neal, Riley, and Reilly or O’Reilly.
The Walking Stag
The image of a stag in motion symbolizes stable political power and is most commonly linked to the McCarthy clan. The McCarthys were a significant family in southern Ireland, tracing their lineage to Carthach, an 11th-century Eóganacht Chaisil king and contemporary of Brian Boru, High King of Ireland. Carthach’s son, Muireadhach, adopted the name Mac Cartaigh (“son of Carthach”), which evolved into the surname MacCarthy. The MacCarthys formed alliances with many southern Irish families and frequently clashed with Norman neighbors such as the Fitzgeralds and Butlers. Other families whose crests feature the walking stag include Daugherty, Green, McConnell or O’Connell, and Rogers.
The Wild Boar
The wild boar represents steadfastness, courage, and a readiness to fight to the end. In contrast, a boar’s head on a crest is a symbol of hospitality. The Sullivans or O’Sullivans (Ua Súileabháin in Gaelic) are another ancient Irish clan whose crest features two wild boars on a black and white quartered field. The O’Sullivan seat of power was in County Tipperary, but the family was also prominent in Cork and Munster. They claim descent from Fedelmid mac Crimthainn, a 9th-century King of Munster. Other families that use the wild boar symbol include Cassidy, McCann, and Sweeney.
Other Distinctive Symbols
Irish heraldry is rich with a variety of symbols, including wild and mythical creatures, weaponry, and unique emblems. The examples above are just a few of the motifs that are distinctly Irish. If you have Irish ancestry, there are many excellent resources available to help amateur genealogists discover more about their family’s coat of arms.
Wm Martin is an experienced genealogist. Visit our site to learn more about Irish coats of arms. Irish heraldry is our specialty.