How Many People Are Named Seibert?
An estimated 7 people in the United States have the first name Seibert. It is almost exclusively a male name. The average bearer is 89 years old, and Seibert peaked in popularity in 1913 with 8 births that year.
Below you will find a full statistical profile of Seibert 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 Seibert paired with any surname.
Key Insights
- With an average bearer age of 89, Seibert is a vintage name most associated with earlier generations. Most living bearers were born before 1947.
- Seibert is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
7
About 1 in 48,964,905 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
89
years old
Peak Year
1913
8 births
Total Registered
66
since 1880
Gender Distribution for Seibert
Seibert is almost exclusively a male name. Out of 66 total births registered, 100.0% were male.
Seibert as a male name
Ranked #3,967 in 1942
5 male births in 1942
Peak: 1913 (8 births)
Seibert: Popularity Over Time
SSA records for Seibert span from the 1910s to the 1940s, covering 4 decades of naming data. The most popular decade for this name was the 1910s, when 32 babies were registered. While Seibert is less common than at its peak in the 1910s, it remains a well-established name with steady registrations.
Seibert by Decade
How has Seibert 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.
Seibert + Last Name Combinations
How many people share a full name with Seibert as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Seibert
Other first names starting with S with a similar number of bearers.
Seibert: Questions and Answers
How many people in the U.S. are named Seibert?
We estimate approximately 7 people named Seibert 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 48,964,905 Americans share this first name.
Is Seibert a common name?
Seibert is classified as "Very Rare" and is more popular than 23.8% of all first names in the SSA database. A total of 66 births have been registered with this name since 1880.
When was Seibert most popular?
Seibert reached peak popularity in 1913, when 8 babies were given this name. The average age of a living person named Seibert is approximately 89 years old, reflecting when the name was most commonly given.
Is Seibert a male name?
Seibert is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Seibert Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Seibert Smith, Seibert Johnson, Seibert 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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