Start your family tree now Is your surname O'Hara?
There are already 194 users and 3,334 genealogy profiles with the O'Hara surname on Geni. Explore O'Hara genealogy and family history in the World's Largest Family Tree.

O'Hara Genealogy and O'Hara Family History Information

‹ Back to Surnames Index

Create your Family Tree.
Discover your Family History.

  • Build your family tree online
  • Share photos and videos
  • Smart Matching™ technology
  • Free!


view all


  • Charles Cathal O'Hara, of Crebilly (c.1565 - 1639)
    Here from his funeral entry are listed the ten children of Cathall O’Hara of The Route and Crebilly who died 1639 and his wife Margaret McDuffie, probably in the correct birth order within either sex...
  • Ellen T DesChamps (c.1883 - c.1975)
    BIRTH: Marriage: ??? ???? its said she was raised by her aunt, could this be her?? so far I havent found anything to say that was true.
  • Grainne "Grace" O'Neill (c.1610 - d.)
  • Field Marshal James O'Hara, PC (1682 - 1774)
    Field Marshal James O'Hara, 2nd Baron Tyrawley and 1st Baron Kilmaine PC (1682 – 14 July 1774) was an Irish officer of the British Army. Career Born the son of Charles O'Hara, 1st Baron Tyraw...

About the O'Hara surname