View the most religious surnames in Ireland

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

The surname O'Brein occurs in The United States more than any other country or territory. It can be rendered as a variant:. For other possible spellings of O'Brein click here.

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

The last name O'Brein is the 1,955,159^th most widely held surname worldwide. It is borne by approximately 1 in 80,082,922 people. The last name O'Brein occurs mostly in The Americas, where 51 percent of O'Brein are found; 51 percent are found in North America and 51 percent are found in Anglo-North America.

The surname is most widely held in The United States, where it is held by 38 people, or 1 in 9,538,393. In The United States it is mostly concentrated in: Florida, where 13 percent live, Texas, where 11 percent live and New York, where 11 percent live. Not including The United States this surname is found in 9 countries. It is also found in Ireland, where 27 percent live and England, where 13 percent live.

O'Brein Family Population Trend ^{historical fluctuation}

The incidence of O'Brein has changed over time. In The United States the number of people carrying the O'Brein surname decreased 86 percent between 1880 and 2014; in Ireland it decreased 66 percent between 1901 and 2014; in England it grew 200 percent between 1881 and 2014 and in Scotland it decreased 94 percent between 1881 and 2014.

O'Brein Last Name Statistics ^demography

The religious adherence of those holding the last name is chiefly Catholic (99%) in Ireland.

The amount O'Brein earn in different countries varies somewhat. In United States they earn 12.81% more than the national average, earning $48,675 USD per year and in Canada they earn 5.95% more than the national average, earning $52,640 CAD per year.