LAST NAME · 2020 CENSUS
Obrien
Obrien is the 261st most common last name in the United States. In the 2020 Census, 115,547 people carried it, about 38.7 of every 100,000 people. Most people named Obrien are White.
WHO CARRIES THIS NAME · 2020
White91.1%
Hispanic3.4%
Multiracial2.9%
Black1.3%
Asian American1.0%
Native American0.3%
Shares are tabulated by the US Census Bureau, not modeled. Methodology.
RANK OVER TIME
1990
#281
96,997
2000
#234
115,385
2010
#258
118,557
2020
#261
115,547