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

Irish Names

Names Ending in -en for Boys

Irish Names for Boys

7 Letter Boy Names

Names Ending in N for Boys

Names That Mean Descendant

Two Syllable Names for Boys

Irish Names that Start With O

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.

Last Names as First Names

Jane Austen Names for Boys 

Alternatives to Ryan

Boy Names That Start With a Vowel

Irish Last Names (With Meanings and Popularity)

Irish Boy Names (with Meanings)

O'brien

Irish

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

Irish Names for Girls

7 Letter Girl Names

Names Ending in N for Girls

Two Syllable Names for Girls

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

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