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