View the most religious surnames in Ireland

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

O'Donnellan is more frequently found in Ireland than any other country/territory. It may be rendered as a variant:. For other possible spellings of this name click here.

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

The last name O'Donnellan is the 2,944,094^th most commonly occurring last name internationally. It is borne by approximately 1 in 165,626,044 people. The surname O'Donnellan occurs predominantly in Europe, where 102 percent of O'Donnellan are found; 100 percent are found in Northern Europe and 100 percent are found in British Isles.

It is most widespread in Ireland, where it is held by 43 people, or 1 in 109,510. In Ireland O'Donnellan is most prevalent in: Connaught, where 58 percent are found and Leinster, where 33 percent are found. Outside of Ireland this last name occurs in 3 countries. It is also common in Belgium, where 2 percent are found and England, where 2 percent are found.

O'Donnellan Family Population Trend ^{historical fluctuation}

The incidence of O'Donnellan has changed over time. In Ireland the share of the population with the last name expanded 4,300 percent between 1901 and 2014.

O'Donnellan Last Name Statistics ^demography

The religious devotion of those carrying the O'Donnellan surname is principally Catholic (100%) in Ireland.