How Many People Are Named Cayn?
An estimated 12 people in the United States have the first name Cayn. It is almost exclusively a male name. The average bearer is 13 years old, and Cayn peaked in popularity in 2012 with 6 births that year.
Below you will find a full statistical profile of Cayn 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 Cayn paired with any surname.
Key Insights
- Cayn is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
12
About 1 in 28,562,862 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
13
years old
Peak Year
2012
6 births
Total Registered
12
since 1880
Gender Distribution for Cayn
Cayn is almost exclusively a male name. Out of 12 total births registered, 100.0% were male.
Cayn as a male name
Ranked #10,950 in 2014
6 male births in 2014
Peak: 2012 (6 births)
Cayn: Popularity Over Time
Cayn by Decade
How has Cayn 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.
| Decade | Total | Male | Female | |
|---|---|---|---|---|
| 2010s | 12 | 12 | 0 | |
Cayn + Last Name Combinations
How many people share a full name with Cayn as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Cayn
Other first names starting with C with a similar number of bearers.
Cayn: Questions and Answers
How many people in the U.S. are named Cayn?
We estimate approximately 12 people named Cayn 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 28,562,862 Americans share this first name.
Is Cayn a common name?
Cayn is classified as "Very Rare" and is more popular than 32.3% of all first names in the SSA database. A total of 12 births have been registered with this name since 1880.
When was Cayn most popular?
Cayn reached peak popularity in 2012, when 6 babies were given this name. The average age of a living person named Cayn is approximately 13 years old, reflecting when the name was most commonly given.
Is Cayn a male name?
Cayn is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Cayn Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Cayn Smith, Cayn Johnson, Cayn 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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