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

Irish Names

Irish Names for Girls

7 Letter Girl Names

Names Ending in N for Girls

Names That Mean Descendant

Two Syllable Names for Girls

Irish Names that Start With O

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. 

Irish Last Names (With Meanings and Popularity)

O'brien

Irish

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

Names Ending in -en for Boys

Irish Names for Boys

7 Letter Boy Names

Names Ending in N for Boys

Two Syllable Names for Boys

The use of <em>O</em>-prefixes could create the next wave of Irish-inflected names, offering an innovative way of honoring a relative with the old-fashioned moniker Brian. On <em>Downton Abbey</em>, the surname O'Brien was heard so often, it began to seem like a first.

O'brien

The name O'brien in Pop Culture

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