O’Connor
Number of Entries in Birth Indexes for 1890
*O’Connor (259)
Ireland
266
Leinster
50
Munster
174
Ulster
13
Connaught
29
Counties in which principally found
Kerry, Cork, Limerick, Dublin, Clare, and Galway contain about 80 per cent.
For an explanation of the above table see Table Explanation.
To find spelling variations and alternatives to particular surnames, see Matheson’s Varieties and Synonymes of Surnames and Christian Names in Ireland.