A surname of Irish origin meaning "descendant of Brian".
In the 1881 census there were 143 people recorded with the Obrion surname, ranking it #15,955 among surnames in the records. By 2016, the modern count was 4, ranked #38,419, down from #15,955 in 1881.
The strongest historical links point to Lanchester (Collierley, Kyo, Billingside, Medomsley, Ebchchester, Benfieldside, Heelyfield, Conside, Auckland St Andrew and Knaresborough (Bilton and Harrogate, Scriven with Tentergate, Knaresborough), Pannall. In the modern distribution records, the strongest local clusters include No data.
Across the surname records, the highest recorded count for Obrion is 168 in 1851. Compared with 1881, the name has fallen by 97.2%.