Kaesyn
A masculine name of uncertain origin, possibly a creative spelling variation.
Name Census estimates that about 462 living Americans carry the first name Kaesyn. It appears on both sides of the gender split, with 84.1% of registrations being male. The average person named Kaesyn today is around 8 years old, and the year with the single highest number of Kaesyn births was 2021 (44 babies).
This page is the full Name Census profile for Kaesyn. Below you will find a gender breakdown showing how the name splits between male and female registrations, a year-by-year popularity chart stretching back to 1880, decade-level totals, the top US states for this name, its meaning and etymology, and a set of frequently asked questions with data-backed answers.
People living today
462
~ 1 in 741,893 Americans
Peak year
2021
44 babies that year
Average age
8
years old
2024 SSA rank
#3,834
Tracked since 2008
Gender
Gender distribution for Kaesyn
Kaesyn leans heavily male at 84.1% of total registrations, but 74 girls have also been registered with the name over the years, giving it a small but present crossover presence.
Kaesyn as a male name
- Ranked #3,834 in 2024
- 29 male births in 2024
- Peak: 2021 (37 births)
Kaesyn as a female name
- Ranked #14,245 in 2024
- 6 female births in 2024
- Peak: 2013 (9 births)
Popularity
Kaesyn: popularity over time
The SSA tracks Kaesyn from the 2000s through to the 2020s, spanning 3 decades of birth certificate data. The biggest single decade for the name was the 2010s, with 264 total registrations. Although the numbers have come down from the 2010s peak, Kaesyn remains solidly in use and shows no sign of disappearing from maternity wards.
Babies born per year
Decades
Kaesyn by decade
The table below breaks the full SSA timeline into ten-year windows. Each row shows how many male and female babies were given the name Kaesyn during that decade, along with a combined total. This is useful for spotting eras where the name surged or retreated.
Geography
Where Kaesyns live
Origin
Meaning and history of Kaesyn
The name Kaesyn is a relatively modern invention, with no clear origin in any established language or culture. It appears to be a creative spelling variation of the more common name "Casey," which has its roots in the Irish Gaelic name "Cáisín," a diminutive form of the name "Cáis."
While there are no historical references or ancient texts mentioning the name Kaesyn specifically, the name Casey has a long history dating back to medieval Ireland. The name Cáis is believed to have been derived from the Irish word "cáis," meaning "brave" or "watchful."
The earliest recorded examples of the name Casey can be found in Irish records from the 16th and 17th centuries. As for the variant spelling Kaesyn, it seems to have emerged more recently, likely within the past few decades, as a unique twist on the traditional name.
There are no widely recognized famous individuals throughout history who bore the name Kaesyn, as it is a relatively new and uncommon spelling variation. However, here are five notable people who shared the more traditional spelling of Casey:
1. Silas Casey (1807-1882), an American military officer who served in the Mexican-American War and the American Civil War.
2. Sean Casey (born 1974), a former Major League Baseball player who spent most of his career with the Cincinnati Reds.
3. Inge Casey (1923-1995), a German-born Australian actress and dancer, best known for her work in Australian television and film.
4. John Casey (1820-1891), an Irish-American playwright and author, known for his works depicting Irish immigrant life in the United States.
5. Kathleen Casey (born 1965), an American lawyer and former Commissioner of the U.S. Securities and Exchange Commission (SEC) from 2006 to 2011.
While the name Kaesyn may be a recent invention, it carries with it the spirit of the traditional Irish name Casey, reflecting a sense of bravery and watchfulness.
People
Kaesyn + last name combinations
How many people share a full name with Kaesyn as the first name? Click a combination below to see the estimate, or search any pairing.
Related
Other names starting with K
Other first names starting with K with a similar number of bearers.
FAQ
Kaesyn: questions and answers
How many people in the U.S. are named Kaesyn?
Name Census puts the figure at roughly 462 living Americans. We arrive at this by taking every SSA birth registration for Kaesyn going back to 1880 and adjusting each cohort for expected survival using CDC actuarial life tables. The result is an age-weighted living-bearer count, not a raw birth total. That works out to about 1 in 741,893 US residents.
Is Kaesyn a common name?
We classify Kaesyn as "Very Rare". It ranks above 83.8% of all first names in the SSA dataset by living bearers. Across the full history of the data, 465 babies have been registered with this name.
When was Kaesyn most popular?
The single biggest year for Kaesyn was 2021, when 44 babies received the name. The fact that the average living Kaesyn is about 8 years old gives you a rough sense of which era contributed the most bearers who are still alive today.
Is Kaesyn a male name?
Yes, 84.1% of people registered as Kaesyn in the SSA data are male. You can see the full per-sex comparison in the gender distribution section above, which includes the latest year rank, birth count, and peak year for each sex.
Where does this data come from?
First-name figures come from the Social Security Administration's national baby name files, which cover every name on a birth certificate from 1880 to 2024. Living-bearer estimates layer in CDC actuarial life tables broken out by sex to account for mortality. The population baseline (342,754,338) is the Census Bureau's latest national estimate. You can read the full calculation on our methodology page.