History of your Surname
Get access to O'harn family records.Start a free trial

O'harn Family History

O'harn Name Meaning

Historically, surnames evolved as a way to sort people into groups - by occupation, place of origin, clan affiliation, patronage, parentage, adoption, and even physical characteristics (like red hair). Many of the modern surnames in the dictionary can be traced back to Britain and Ireland.


Similar surnames: O'hearn, O'hara, O'hare, O'hern, Ohara, O'gara, O'barr, O'mara

Search for a relative to learn more about your family history.

Hint: Try searching for a relative alive in 1940.

Black & white image of a young woman scientist

Where is the O'harn family from?

You can see how O'harn families moved over time by selecting different census years. The O'harn family name was found in the USA in 1880. In 1880 there were 9 O'harn families living in Connecticut. This was about 64% of all the recorded O'harn's in USA. Connecticut had the highest population of O'harn families in 1880.
Use census records and voter lists to see where families with the O'harn surname lived. Within census records, you can often find information like name of household members, ages, birthplaces, residences, and occupations.

What did your O'harn ancestors do for a living?

Census records can tell you a lot of little known facts about your O'harn ancestors, such as occupation. Occupation can tell you about your ancestor's social and economic status.

What O'harn family records will you find?

Census Records

There are 402 census records available for the last name O'harn. Like a window into their day-to-day life, O'harn census records can tell you where and how your ancestors worked, their level of education, veteran status, and more.

Search UK census records for O'harn

Passenger Lists

There are 66 immigration records available for the last name O'harn. Passenger lists are your ticket to knowing when your ancestors arrived in the UK, and how they made the journey - from the ship name to ports of arrival and departure.

View all O'harn immigration records

Draft Cards

There are 62 military records available for the last name O'harn. For the veterans among your O'harn ancestors, military collections provide insights into where and when they served, and even physical descriptions.

View all O'harn military records

You've only scratched the surface of O'harn family history

Discover More

What is the average O'harn lifespan?

Discover the unique achievements of ancestors in the O'harn family tree

Explore Your Tree

Browse profiles of historical people with the O'harn last name

Search for another surname
Enter last name/surname
Start a 14-Day Free Trial