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All you have to know about the last name MCCULLOUGH

Last name frequency

MCCULLOUGH : This last name is indexed 54,312 times on Geneanet!

Origin of last name

MCCULLOUGH : Irish (especially Ulster): Anglicized form of Gaelic Mac Cú Uladh a patronymic from the personal name Cú Uladh ‘hound of Ulster’. Compare McNally which is from Mac Con Uladh genitive form of the same name and McColl with which the name seems to have sometimes been confused. The name McCullough has sometimes been associated with Gaelic cullach ‘wild boar’ and some families in County Sligo translated it into English as Boar. However Mac Cú Uladh is the more likely explanation.

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