How Many People Are Named Terry Oreilly?
There are approximately 16 people named Terry Oreilly living in the United States today. That makes this name combination rare, occurring at a rate of about 1 in 21,422,146 Americans.
This estimate combines SSA birth records for the first name Terry with Census Bureau frequency data for the surname Oreilly. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Estimated People with This Name
16
1 in 21,422,146 Americans
Combination Rarity
Rare
First Name
View full profileTerry
Last Name
View full profileOreilly
Terry: Popularity Over Time
Year-by-year SSA birth registrations for the first name Terry. The peak year was 1955 with 20,939 births. The average person named Terry today is 63 years old.
Ancestry of the Oreilly Surname
Self-reported race and ethnicity breakdown for people with the surname Oreilly, from the 2010 U.S. Census Bureau.
How we calculated this
The first name "Terry" has an estimated frequency of 0.115% among living Americans, based on SSA birth records from 1880 to 2024 adjusted for mortality using CDC 2023 life tables.
The surname "Oreilly" appears at a rate of 4.09 per 100,000 people in the 2010 U.S. Census.
Multiplying these frequencies against the U.S. population of ~343 million gives 16 estimated people. This assumes first names and last names are statistically independent. Full methodology.
Other people named Terry
Terry Oreilly: Questions and Answers
How many people are named Terry Oreilly?
We estimate approximately 16 people named Terry Oreilly are alive in the United States today. The first name Terry is shared by 392,854 Americans, and the surname Oreilly is shared by 13,738.
How rare is the name Terry Oreilly?
This name combination is classified as Rare, occurring at a rate of about 1 in 21,422,146 Americans. The first name Terry is common and the surname Oreilly is uncommon.
Is Terry a male or female name?
Terry is predominantly male, with 81.4% of bearers being male and 18.6% female. It peaked in popularity in 1955 and the average bearer today is 63 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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