View the most religious surnames in Ireland

Where Does The Last Name O'Ceallaigh Come From? ^{nationality or country of origin}

The surname O'Ceallaigh is found most frequently in Ireland. It can appear as:. Click here for other possible spellings of this last name.

How Common Is The Last Name O'Ceallaigh? ^{popularity and diffusion}

This surname is the 1,227,038^th most common last name on a worldwide basis, held by around 1 in 38,355,505 people. The surname O'Ceallaigh is primarily found in Europe, where 93 percent of O'Ceallaigh reside; 92 percent reside in Northern Europe and 92 percent reside in British Isles.

The surname O'Ceallaigh is most frequently occurring in Ireland, where it is borne by 148 people, or 1 in 31,817. In Ireland it is most prevalent in: Leinster, where 55 percent reside, Munster, where 23 percent reside and Connaught, where 22 percent reside. Besides Ireland this last name exists in 9 countries. It is also found in The United States, where 8 percent reside and Northern Ireland, where 7 percent reside.

O'Ceallaigh Family Population Trend ^{historical fluctuation}

The frequency of O'Ceallaigh has changed over time. In Ireland the number of people carrying the O'Ceallaigh last name expanded 4,933 percent between 1901 and 2014.

O'Ceallaigh Last Name Statistics ^demography

The religious devotion of those holding the O'Ceallaigh last name is predominantly Catholic (100%) in Ireland.