How Many People Are Named Oswin Williams?
There are approximately 3 people named Oswin Williams living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 114,251,446 Americans.
This estimate combines SSA birth records for the first name Oswin with Census Bureau frequency data for the surname Williams. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Estimated People with This Name
3
1 in 114,251,446 Americans
Combination Rarity
Very Rare
First Name
View full profileOswin
Last Name
View full profileWilliams
Oswin: Popularity Over Time
Year-by-year SSA birth registrations for the first name Oswin. The peak year was 2018 with 38 births. The average person named Oswin today is 11 years old.
Ancestry of the Williams Surname
Self-reported race and ethnicity breakdown for people with the surname Williams, from the 2010 U.S. Census Bureau.
How we calculated this
The first name "Oswin" has an estimated frequency of < 0.0001% among living Americans, based on SSA birth records from 1880 to 2024 adjusted for mortality using CDC 2023 life tables.
The surname "Williams" appears at a rate of 550.97 per 100,000 people in the 2010 U.S. Census.
Multiplying these frequencies against the U.S. population of ~343 million gives 3 estimated people. This assumes first names and last names are statistically independent. Full methodology.
Other people named Oswin
Other people with the surname Williams
Oswin Williams: Questions and Answers
How many people are named Oswin Williams?
We estimate approximately 3 people named Oswin Williams are alive in the United States today. The first name Oswin is shared by 459 Americans, and the surname Williams is shared by 1,850,671.
How rare is the name Oswin Williams?
This name combination is classified as Very Rare, occurring at a rate of about 1 in 114,251,446 Americans. The first name Oswin is very rare and the surname Williams is very common.
Is Oswin a male or female name?
Oswin is predominantly male, with 78.0% of bearers being male and 22.0% female. It peaked in popularity in 2018 and the average bearer today is 11 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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