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

The surname O'Rooney is held by more people in Canada than any other country/territory. It may also be rendered as:. Click here for other potential spellings of this surname.

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

The surname is the 5,057,639^th most frequently held last name at a global level, borne by approximately 1 in 485,836,394 people. The last name occurs predominantly in The Americas, where 67 percent of O'Rooney reside; 67 percent reside in North America and 67 percent reside in Anglo-North America.

The surname is most widespread in Canada, where it is carried by 8 people, or 1 in 4,605,699. In Canada it is most common in: British Columbia, where 100 percent reside. Barring Canada this last name occurs in 2 countries. It is also found in England, where 33 percent reside and The United States, where 13 percent reside.