View the most religious surnames in Ireland

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

O'Reilley is held by more people in Canada than any other country/territory. It may appear as a variant:. For other potential spellings of this surname click here.

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

The last name is the 1,353,468^th most frequent last name globally, borne by around 1 in 44,436,256 people. This last name is predominantly found in The Americas, where 68 percent of O'Reilley reside; 65 percent reside in North America and 65 percent reside in Anglo-North America.

The last name O'Reilley is most frequently used in Canada, where it is held by 57 people, or 1 in 646,414. In Canada it is primarily concentrated in: Ontario, where 39 percent are found, Alberta, where 19 percent are found and British Columbia, where 18 percent are found. Apart from Canada this last name occurs in 8 countries. It is also found in The United States, where 31 percent are found and Australia, where 14 percent are found.

O'Reilley Family Population Trend ^{historical fluctuation}

The frequency of O'Reilley has changed over time. In The United States the number of people carrying the O'Reilley last name fell 70 percent between 1880 and 2014 and in England it expanded 125 percent between 1881 and 2014.

O'Reilley Last Name Statistics ^demography

The religious adherence of those holding the O'Reilley last name is chiefly Catholic (100%) in Ireland.

The amount O'Reilley earn in different countries varies somewhat. In United States they earn 8.98% more than the national average, earning $47,025 USD per year and in Canada they earn 17.98% more than the national average, earning $58,615 CAD per year.