Within the UK and Ireland, the surname Gaynor most frequently occurs in Ireland where it is carried by 1 in every 2,810 people. The majority of those with the family name of Gaynor are to be found living in/around Leinster (approx. 35% of all UK Gaynor's), Munster and Connaught. The name can also be found in England with 1 in 33,581 people using it.
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