How Many People Are Named Richard Obrien?
There are approximately 630 people named Richard Obrien living in the United States today. That makes this name combination uncommon, occurring at a rate of about 1 in 544,055 Americans.
This estimate combines SSA birth records for the first name Richard with Census Bureau frequency data for the surname Obrien. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Estimated People with This Name
630
1 in 544,055 Americans
Combination Rarity
Uncommon
First Name
View full profileRichard
Last Name
View full profileObrien
Richard: Popularity Over Time
Year-by-year SSA birth registrations for the first name Richard. The peak year was 1946 with 58,991 births. The average person named Richard today is 62 years old.
Ancestry of the Obrien Surname
Self-reported race and ethnicity breakdown for people with the surname Obrien, from the 2010 U.S. Census Bureau.
How we calculated this
The first name "Richard" has an estimated frequency of 0.458% among living Americans, based on SSA birth records from 1880 to 2024 adjusted for mortality using CDC 2023 life tables.
The surname "Obrien" appears at a rate of 40.19 per 100,000 people in the 2010 U.S. Census.
Multiplying these frequencies against the U.S. population of ~343 million gives 630 estimated people. This assumes first names and last names are statistically independent. Full methodology.
Other people named Richard
Other people with the surname Obrien
Richard Obrien: Questions and Answers
How many people are named Richard Obrien?
We estimate approximately 630 people named Richard Obrien are alive in the United States today. The first name Richard is shared by 1,568,549 Americans, and the surname Obrien is shared by 134,995.
How rare is the name Richard Obrien?
This name combination is classified as Uncommon, occurring at a rate of about 1 in 544,055 Americans. The first name Richard is very common and the surname Obrien is common.
Is Richard a male or female name?
Richard is predominantly male, with 99.6% of bearers being male and 0.4% female. It peaked in popularity in 1946 and the average bearer today is 62 years old.
Where does this data come from?
First name data comes from the Social Security Administration (1880 to 2024), adjusted for survival using CDC 2023 life tables. Surname data comes from the 2010 U.S. Census Bureau. Full methodology.
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