Origins of the O'Brien surname

About the O'Briens

We have a total of 275107 records for people with the last name O'Brien.

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    Delve deeper into the O'Brien family's history

    OrkneyShetlandHighlandsWestern IslesGrampianTaysideCentralStrathclydeFifeLothianBordersDumfriesNorth East 561North West 391Isle of Man 22Yorkshire 854East Midlands 109West Midlands 171East 276London 3666South East 768South West 1169South Wales 171Mid Wales 39West Wales 1North Wales 43Republic of IrelandNorthern Ireland

    In 1921, most O'Briens lived in london

    Census records trace your ancestors through each generation, so you can follow where your relatives lived through each decade.

    190,000 O'Brien Travel & migration records
    82,000 O'Briens found in all Census records

    Interesting facts about O'brien

    How common is your surname?

    412th most common surname in the UK

    We have for the O'brien surname. The oldest one dates back to 1575.

    Who were O'briens most likely to marry?

    Our tell us which families married O'briens.

    What are the most common O'brien first names?

    John

    James

    Mary

    Margaret

    Our tell us the names of O'brien family members
    Man with milk churns and census card collage
    Census records provide incredible detail on names, ages, marital statuses, occupations and more.

    Common jobs for O'briens

    Men and women often performed different types of jobs, so these are displayed by gender to maintain their historical accuracy.

    Common female occupations for O'briens in 1921

    Domestic Servant

    284

    Laundress

    283

    Charwoman

    262

    Dressmaker

    252

    Tailoress

    209

    Common male occupations for O'briens in 1921

    General Labourer

    747

    Tailor

    399

    Dock Labourer

    377

    Coal Miner

    315

    Semiskilled Chauffeurs And Drivers

    220

    We found over 140,000 family trees with the O'brien surname

    Trace your family back in time and see what other Findmypast family historians in our genealogy community have discovered about the O'briens.

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    Learn more about the lives of O'brien family members

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