How Many People Are Named Wei?
An estimated 350 people in the United States have the first name Wei. It is used for both genders, with 78.2% male. The average bearer is 33 years old, and Wei peaked in popularity in 2001 with 20 births that year.
Below you will find a full statistical profile of Wei as a first name in the United States, including gender data, a year-by-year popularity timeline going back to 1880, a decade breakdown, and state-by-state birth registrations. You can also check how many people share the full name Wei paired with any surname.
Estimated Living Americans
350
About 1 in 979,298 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
78.2% confidence
Average Age
33
years old
Peak Year
2001
20 births
Total Registered
362
since 1880
Gender Distribution for Wei
Wei is a genuinely unisex name, used for both males (78.2%) and females (21.8%). Out of 362 total births registered, 283 were male and 79 were female.
Wei as a male name
Ranked #9,637 in 2017
8 male births in 2017
Peak: 1998 (18 births)
Wei as a female name
Ranked #20,422 in 2007
5 female births in 2007
Peak: 1987 (9 births)
Wei: Popularity Over Time
SSA records for Wei span from the 1970s to the 2010s, covering 5 decades of naming data. The most popular decade for this name was the 1990s, when 141 babies were registered. Wei has declined significantly from its peak in the 1990s. Recent registrations are a fraction of what they were at the name's height.
Wei by Decade
How has Wei tracked across different eras? The table below groups all SSA birth registrations into 10-year periods, with separate male and female counts. The colored bar shows each decade's share relative to the peak.
Wei by State
Wei + Last Name Combinations
How many people share a full name with Wei as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Wei
Other first names starting with W with a similar number of bearers.
Wei: Questions and Answers
How many people in the U.S. are named Wei?
We estimate approximately 350 people named Wei are alive in the United States today. This is based on SSA birth records from 1880 to 2024, adjusted for mortality using CDC life tables. About 1 in 979,298 Americans share this first name.
Is Wei a common name?
Wei is classified as "Very Rare" and is more popular than 80.9% of all first names in the SSA database. A total of 362 births have been registered with this name since 1880.
When was Wei most popular?
Wei reached peak popularity in 2001, when 20 babies were given this name. The average age of a living person named Wei is approximately 33 years old, reflecting when the name was most commonly given.
Is Wei a male name?
Wei is predominantly male. 78.2% of people with this name are male. See the gender breakdown above for full details.
How many Wei Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Wei Smith, Wei Johnson, Wei Williams. You can also search any combination on our homepage.
Where does this data come from?
Our estimates use Social Security Administration birth records (1880 to 2024), adjusted for survival using CDC 2023 life tables broken down by sex. The U.S. population figure (342,754,338) is from the Census Bureau's July 2025 estimate. Full methodology.
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