O'Neil Family History & Genealogy

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O'Neil Surname History

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O'Neil Family Tree

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Famous People named O'Neil

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O'Neil Country of Origin, Nationality, & Ethnicity

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O'Neil Meaning & Etymology

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O'Neil Life Expectancy

According to our database of 595 people with the last name O'Neil that have a birth and death date listed:

Life Expectancy

60.7
years

Most Common O'Neil First Names

According to our database of 2,786 people with the last name O'Neil that have a first name listed, these are the most common first names:

  • John 13.6%
  • James 8.8%
  • William 5.6%
  • Thomas 5.0%
  • Michael 4.6%
  • Patrick 4.4%
  • Charles 2.4%
  • Edward 1.9%
  • Daniel 1.9%
  • Henry 1.8%
  • Joseph 1.5%
  • George 1.3%
  • Robert 1.2%
  • Dennis 1.1%
  • Peter 0.9%
  • Richard 0.9%
  • Hugh 0.9%
  • Frank 0.8%
  • Arthur 0.7%
  • Bernard 0.7%
  • Francis 0.7%
  • David 0.6%
  • Eugene 0.6%
  • Timothy 0.5%
  • Felix 0.5%
  • Andrew 0.5%
  • Jeremiah 0.5%
  • Mary 0.5%
  • Cornelius 0.5%
  • Donald 0.4%
  • Harry 0.4%
  • William h. 0.4%
  • Samuel 0.4%
  • John w. 0.3%
  • John h. 0.3%
  • J. 0.3%
  • Margaret 0.3%
  • Lawrence 0.3%
  • Owen 0.3%
  • Martin 0.3%
  • Walter 0.3%
  • Raymond 0.3%
  • Florence 0.3%
  • W. 0.2%
  • Alfred 0.2%
  • Albert 0.2%
  • Terrence 0.2%
  • Jack 0.2%
  • Alexander 0.2%
  • Paul 0.2%

O'Neil Pronunciation & Spelling Variations

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Last names similar to O'Neil

O' Neil, Oneila, Oneilaica, Oneilalton, Oneilbrian, Oneilc, Oneildavid, Oneildonald, Oneile, O'Neile, Oneiledward, Oneiley, Oneilffrank, Oneilin, Oneiljohn, Oneiljones, Oneiljr, ONeill, O Neill, O'Neill