Kavanagh (surname)

Kavanagh / Kavanaugh
Family name
Pronunciation	Kav-na or Ka-va-na
Meaning	A variation of the Irish Gaelic surname Caomhánach.
Motto	Peace and Plenty
Related names	Caomhánach, Cavanagh, Cavanaugh, and more.

Kavanagh or Kavanaugh is a surname of Irish origin, Caomhánach in Irish Gaelic. It is properly Mac Murchadha Caomhánach (an example of an Irish agnomen; see Ó Catharnaigh Sionnach or Fox of Fir Teathbha), but is often now rendered 'Caomhánach' or rarely 'Ó Caomhánaigh'.

"Kavanagh" and "Kavanaugh" are anglicised variations of the Irish Gaelic surname Caomhánach (Cʌoṁʌ̃nʌċ in traditional Gaelic script). The surname was first assumed by Domhnall Caomhánach (the eldest son of the 12th century King of Leinster, Diarmait Mac Murchada) in Ireland. A considerable number of anglicised variations of Caomhánach exist, with some of the most common being: "Kavanagh", "Cavanagh", "Kavanaugh" and "Cavanaugh".

The surname was possibly adopted by Síl Fáelchán clansmen in preference to the earlier name MacMurrough, given the prestige associated with the dynamic junior line that seized the chiefship of the Uí Cheinnselaig tribal group in the High Middle Ages.

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