View the most religious surnames in Ireland

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

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

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

The last name is the 39,511^th most frequent last name on a worldwide basis It is held by approximately 1 in 548,513 people. This surname is primarily found in Europe, where 93 percent of O'Mahony live; 91 percent live in Northern Europe and 91 percent live in British Isles.

This surname is most common in Ireland, where it is borne by 9,860 people, or 1 in 478. In Ireland O'Mahony is most frequent in: Munster, where 80 percent reside, Leinster, where 18 percent reside and Connaught, where 2 percent reside. Beside Ireland it is found in 55 countries. It also occurs in England, where 16 percent reside and Australia, where 4 percent reside.

O'Mahony Family Population Trend ^{historical fluctuation}

The incidence of O'Mahony has changed through the years. In Ireland the number of people who held the O'Mahony surname increased 765 percent between 1901 and 2014; in England it increased 8,583 percent between 1881 and 2014; in The United States it increased 379 percent between 1880 and 2014; in Scotland it increased 6,700 percent between 1881 and 2014 and in Wales it increased 3,150 percent between 1881 and 2014.

O'Mahony Last Name Statistics ^demography

The religious devotion of those holding the surname is primarily Catholic (99%) in Ireland.

The amount O'Mahony earn in different countries varies greatly. In United States they earn 124.66% more than the national average, earning $96,938 USD per year and in Canada they earn 27.74% more than the national average, earning $63,465 CAD per year.