Irish formÓ Cinnéide
Meaning'descendant of Cinnéididh' (helmeted-head)
CountiesTipperary, Clare, Galway, Dublin
Other spellings2
Origin of the Kennedy name
Woulfe lists at least two families: (1) of Ormond, a Dál gCais branch descended from Cinnéidigh, son of Donnchuan, brother of Brian Boru, first seated at Glenomra (Killokennedy parish, east Clare), later in Upper and Lower Ormond, Tipperary, lords of Ormond 12th–16th century; (2) of Clann Cearnaigh, a Ui Maine branch in Co. Galway.[1]
- 12th–16th c.The Ormond O'Kennedys rank as lords of Ormond.[1]
- 1690'O Kennedy' listed among Irish septs in Terry's Book of Arms.[4]
- 1801Writer Patrick Kennedy born in Co. Wexford.[5]
- 1890446 births; found in every county, largest numbers in Tipperary, Dublin, Antrim.[3]
Scottish connection
Kennedy is also a Scottish name. Historic Environment Scotland says Culzean, in Ayrshire, 'has been associated with the Kennedy family since the Middle Ages'; Gilbert, 4th Earl of Cassillis, gifted it to his brother Thomas Kennedy in 1569, and Archibald, the 12th Earl, later became the 1st Marquess of Ailsa. The sources opened do not link this family with the Irish Ó Cinnéide.[6]
Kennedy surname: questions
Is Kennedy Irish or Scottish?
Both. In Ireland Woulfe gives Kennedy as an anglicised form of Ó Cinnéide. Separately, Kennedy is a Scottish name: Historic Environment Scotland records Culzean in Ayrshire as associated with the Kennedy family, Earls of Cassillis and later Marquesses of Ailsa, since the Middle Ages. The sources opened do not connect the two.[1][6]
What does the surname Kennedy mean?
Woulfe gives the Irish Ó Cinnéide as 'descendant of Cinnéididh', glossed 'helmeted-head'.[1]
Where in Ireland is Kennedy from?
Woulfe places the main Ó Cinnéide family first in east Clare and then in Ormond, Co. Tipperary, with a second family in Co. Galway. In 1890 Kennedy was found in every county, with the largest numbers in Tipperary, Dublin and Antrim.[1][3]
Are the O'Kennedys related to Brian Boru?
According to Woulfe, the Ormond O'Kennedys descend from Cinnéidigh, son of Donnchuan, the brother of Brian Boru.[1]
How common is Kennedy in Ireland?
In Matheson's survey of the 1890 Births Index, Kennedy was 16th of the hundred principal surnames, with an estimated 19,900 people.[2]