Irish formÓ Maolchatha, Ó Maolchathaigh
Meaning'descendant of Maolchatha' (battle-chief), or 'Maolcathach' (warlike chief), or 'Maolchathaigh' (follower of Cathach, warlike)
CountiesTipperary, Waterford, Cork, Limerick
Other spellings2
Origin of the Mulcahy name
Woulfe calls Ó Maolchatha 'a well-known Munster surname' which 'seems to have originated in South Tipperary, but is now common also in Waterford, Cork and Limerick.' Under a different name, Ó Maolchluiche (a Sligo family), he says that in Limerick it 'has been turned into the more common surname, Mulcahy'.[1][2]
- 1659Woulfe: Ó Maolchluiche, a different name, appears as Mulclahy in Co. Limerick (1659 census).[2]
- 189076 Mulcahy birth entries; all except 6 in Cork, Limerick, Waterford, Tipperary.[3][4]
- 1922Richard Mulcahy becomes Minister for Defence (to March 1924), per ISAD.[5]
- 1948Richard Mulcahy becomes Minister for Education (1948–51, again 1954–57), per ISAD.[5]
Mulcahy surname: questions
What does the surname Mulcahy mean?
Woulfe gives Mulcahy as a form of Ó Maolchatha, 'descendant of Maolchatha' (battle-chief), or 'Maolcathach' (warlike chief), or 'Maolchathaigh' (follower of Cathach, warlike).[1]
Is Mulcahy an Irish name?
Yes. Woulfe lists O Mulcaha, O Mulcahy and Mulcahy as anglicised forms of the Irish surname Ó Maolchatha and calls it 'a well-known Munster surname'.[1]
Where in Ireland is the Mulcahy name from?
Woulfe says it seems to have originated in South Tipperary but is now common also in Waterford, Cork and Limerick. In 1890 all but 6 of the 76 Mulcahy births registered in Ireland were in Cork, Limerick, Waterford and Tipperary.[1][3]
Are all Mulcahys descended from one family?
Not necessarily. Woulfe says that in Limerick a different name, Ó Maolchluiche (from a Sligo family, chiefs of Cairbre), 'has been turned into the more common surname, Mulcahy'.[2]