O Brian
Name Origin
Name Origin

Discover your ancestors' surnames!

Discover the O Brian
story

Explore the lives of your ancestors

Your name is all it takes to get started

Uncover your family tree

Ready to discover the O Brian story?

O BrianBorn:FatherBorn:MotherBorn:

Explore the lives of your ancestors

We'll help you connect with your ancestors and explore their lives

Uncover your family tree

Your name is all it takes to get started, and it's FREE!

Did you know?

What does the O Brian surname reveal about your family history?

The earliest occurrence of the O Brian surname in our family history documents is from 1698, and we currently have 16,874 records where O Brian appears. Here are a few more facts to get you started…

Start building your O Brian family story

Become one of the millions of users who are building their family tree with us. Create yours today for free.

Discover O Brian records

O Briansin military records

Were your ancestors war heroes?

O Briansin census records

Where did your family live & what did they do?

O Briansin convict records

Did your family have a brush with the law?

O Briansin parish records

Where were your family born, married, and buried?