View the most religious surnames in Ireland

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

The last name O'Dennell occurs in Northern Ireland more than any other country/territory. It can also appear as:. Click here for other potential spellings of this surname.

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

The surname is the 8,193,072^nd most numerous last name internationally It is held by around 1 in 1,457,509,183 people. O'Dennell occurs predominantly in Europe, where 60 percent of O'Dennell are found; 60 percent are found in Northern Europe and 60 percent are found in British Isles.

It is most frequently held in Northern Ireland, where it is borne by 2 people, or 1 in 922,518. In Northern Ireland it is mostly found in: Ulster, where 100 percent live. Excluding Northern Ireland it is found in 3 countries. It also occurs in Australia, where 20 percent live and The United States, where 20 percent live.

O'Dennell Family Population Trend ^{historical fluctuation}

The occurrence of O'Dennell has changed through the years. In The United States the number of people who held the O'Dennell surname declined 50 percent between 1880 and 2014.

O'Dennell Last Name Statistics ^demography

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