O'brien

Irish
"descendant of Brian"

O'brien Origin and Meaning

The name O'brien is a girl's name of Irish origin meaning "descendant of Brian".

This kind of authentic Irish surname makes a memorable first name for either sex, following in the path of all the Mac and Mc names recently popular.

O'brien in Pop Culture

  • Sarah O'Brien
    character on the British TV series "Downton Abbey"