How Many People Are Named Leiby?
An estimated 143 people in the United States have the first name Leiby. It is almost exclusively a male name. The average bearer is 8 years old, and Leiby peaked in popularity in 2024 with 18 births that year.
Below you will find a full statistical profile of Leiby 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 Leiby paired with any surname.
Estimated Living Americans
143
About 1 in 2,396,883 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
8
years old
Peak Year
2024
18 births
Total Registered
144
since 1880
Gender Distribution for Leiby
Leiby is almost exclusively a male name. Out of 144 total births registered, 100.0% were male.
Leiby as a male name
Ranked #5,339 in 2024
18 male births in 2024
Peak: 2024 (18 births)
Leiby: Popularity Over Time
SSA records for Leiby span from the 2000s to the 2020s, covering 3 decades of naming data. The most popular decade for this name was the 2020s, when 71 babies were registered. Leiby remains highly popular today, with recent registration numbers near its historical peak.
Leiby by Decade
How has Leiby 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.
Leiby by State
Leiby + Last Name Combinations
How many people share a full name with Leiby as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Leiby
Other first names starting with L with a similar number of bearers.
Leiby: Questions and Answers
How many people in the U.S. are named Leiby?
We estimate approximately 143 people named Leiby 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 2,396,883 Americans share this first name.
Is Leiby a common name?
Leiby is classified as "Very Rare" and is more popular than 69.6% of all first names in the SSA database. A total of 144 births have been registered with this name since 1880.
When was Leiby most popular?
Leiby reached peak popularity in 2024, when 18 babies were given this name. The average age of a living person named Leiby is approximately 8 years old, reflecting when the name was most commonly given.
Is Leiby a male name?
Leiby is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Leiby Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Leiby Smith, Leiby Johnson, Leiby 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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