How Many People Are Named Leith?
An estimated 656 people in the United States have the first name Leith. It is used for both genders, with 85.5% male. The average bearer is 36 years old, and Leith peaked in popularity in 2018 with 23 births that year.
Below you will find a full statistical profile of Leith 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 Leith paired with any surname.
Estimated Living Americans
656
About 1 in 522,491 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
85.5% confidence
Average Age
36
years old
Peak Year
2018
23 births
Total Registered
759
since 1880
Gender Distribution for Leith
Leith is predominantly male (85.5%), though 110 female births have been registered. It functions as a unisex name for a small percentage of bearers.
Leith as a male name
Ranked #9,481 in 2024
8 male births in 2024
Peak: 2018 (23 births)
Leith as a female name
Ranked #5,815 in 1973
9 female births in 1973
Peak: 1967 (9 births)
Leith: Popularity Over Time
SSA records for Leith span from the 1910s to the 2020s, covering 12 decades of naming data. The most popular decade for this name was the 1970s, when 110 babies were registered. While Leith is less common than at its peak in the 1970s, it remains a well-established name with steady registrations.
Leith by Decade
How has Leith 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.
Leith + Last Name Combinations
How many people share a full name with Leith as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Leith
Other first names starting with L with a similar number of bearers.
Leith: Questions and Answers
How many people in the U.S. are named Leith?
We estimate approximately 656 people named Leith 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 522,491 Americans share this first name.
Is Leith a common name?
Leith is classified as "Very Rare" and is more popular than 87% of all first names in the SSA database. A total of 759 births have been registered with this name since 1880.
When was Leith most popular?
Leith reached peak popularity in 2018, when 23 babies were given this name. The average age of a living person named Leith is approximately 36 years old, reflecting when the name was most commonly given.
Is Leith a male name?
Leith is predominantly male. 85.5% of people with this name are male. See the gender breakdown above for full details.
How many Leith Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Leith Smith, Leith Johnson, Leith 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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