How common is the last name Oneill?

49,365 people in the United States have the last name Oneill, about 1 in 6,055. It ranks #673 of 156,621 last names in the 2020 Census.

last name

ONEILL

#673

of 156,621 last names recorded in the 2020 Census

People
49,365
About
1 in 6,055
This common or more
35.2%
Who bears it

Of the 49,365 people with the last name Oneill, 89.8% reported their origin as White, 5.2% as Hispanic or Latino and 2.8% as two or more races. These count how people described themselves on the 2020 Census, not where the name comes from.

Either side of Oneill

#671 Mathews · 49,484#672 Heath · 49,412#674 Atkins · 49,353#675 Cisneros · 49,338

Spelled almost the same

3 last names in the 2020 Census spelled within a letter or two of Oneill, most common first.

#1,230 Oneil · 28,057#57,177 Oneall · 385#89,563 Onell · 222

Also a first name

As a first name, Oneill ranks #33,126 of 53,615, with 251 people. See Oneill as a first name

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