Irish formMac Dhomhnaill (usual); Mac Conaill (very rare)
MeaningMac Dhomhnaill: a variant of Mac Domhnaill, 'son of Domhnall' (world-mighty); Mac Conaill: 'son of Conall' (high-ruler)
CountiesAntrim, Down, Tyrone
Other spellings4
Origin of the McConnell name
Woulfe: MacConnell is 'in most instances' from Mac Dhomhnaill, a variant of Mac Domhnaill; this form is 'common in the spoken language even when the anglicised form is MacDonnell'. Under Mac Domhnaill he names three families: the MacDonalds/MacDonnells of Scotland, the MacDonnells of Clan-Kelly (Fermanagh) and of Thomond. Mac Conaill is a separate, very rare name.[1][2][3]
- 1890101 entries incl. varieties (98 as McConnell), 89 in Ulster; chiefly Antrim, Down, Tyrone.[4][6]
McConnell surname: questions
Is McConnell Irish or Scottish?
Woulfe lists MacConnell among the anglicised forms of Mac Dhomhnaill, a variant of Mac Domhnaill (MacDonnell). Of the three Mac Domhnaill families he names, the first is the MacDonalds of Scotland, who 'came over in large numbers to Ireland' in the 14th and 15th centuries; the other two are the MacDonnells of Clan-Kelly (Fermanagh) and of Thomond. He does not say which family any particular MacConnell descends from.[1][2][3]
What does the surname McConnell mean?
Usually 'son of Domhnall' (world-mighty), via Mac Dhomhnaill; rarely 'son of Conall' (high-ruler), from Mac Conaill.[1][3]
Where in Ireland is the McConnell name found?
Mainly in Ulster: of 101 entries for McConnell and its spelling varieties in the 1890 birth indexes, 89 were in Ulster, chiefly in Antrim, Down and Tyrone.[4][6]
Are McConnell and McDonnell the same name?
They are linked. Woulfe says Mac Dhomhnaill, the usual origin of MacConnell, is a variant of Mac Domhnaill (MacDonnell). Matheson's 1901 varieties list gives [M'Connell] under M'Donnell, meaning the spellings were found or reported to be used interchangeably in registration records; he says this does not mean the names are in all cases forms of the same name.[1][2][5][7]