Within the UK and Ireland, the surname Mcgann most frequently occurs in Ireland where it is carried by 1 in every 4,721 people. The majority of those with the family name of Mcgann are to be found living in/around Leinster (approx. 40% of all UK Mcgann's), Munster and Connaught. The name can also be found in England with just 1 in every 180,000 people using it.
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