O'Neil Family History & Genealogy
O'Neil Last Name History & Origin
AddHistory
We don't have any information on the history of the O'Neil name. Have information to share?
Name Origin
We don't have any information on the origins of the O'Neil name. Have information to share?
Spellings & Pronunciations
We don't have any alternate spellings or pronunciation information on the O'Neil name. Have information to share?
Nationality & Ethnicity
We don't have any information on the nationality / ethnicity of the O'Neil name. Have information to share?
Famous People named O'Neil
Are there famous people from the O'Neil family? Share their story.
Early O'Neils
These are the earliest records we have of the O'Neil family.













O'Neil Family Photos
Discover O'Neil family photos shared by the community. These photos contain people and places related to the O'Neil last name.


photo on right: Mary & Mary Ann O'Neil (Handwritten on back)
No location, but Mary Ann had the same great smile when she was 6 as she did when she was a baby!
Found in an antique store in Santa Cruz, CA.






No id for any men in this photo. 9th Regiment Mass Infantry was comprised of mostly men of Irish birth. Also cannot find record of my direct ancestors having served (although their graves are marked as 'veteran'. Many Walshes & O'Neils were in this regiment.
O'Neil Family Tree
Discover the most common names, oldest records and life expectancy of people with the last name O'Neil.
Updated O'Neil Biographies



















Popular O'Neil Biographies



















O'Neil Death Records & Life Expectancy
The average age of a O'Neil family member is 65.0 years old according to our database of 619 people with the last name O'Neil that have a birth and death date listed.
Life Expectancy
Oldest O'Neils
These are the longest-lived members of the O'Neil family on AncientFaces.












Other O'Neil Records
Share memories about your O'Neil family
Leave comments and ask questions related to the O'Neil family.
Followers & Sources
