Kaydynn
A feminine name of American origin meaning "pure and beautiful".
Name Census estimates that about 11 living Americans carry the first name Kaydynn. It appears on both sides of the gender split, with 54.5% of registrations being male. The average person named Kaydynn today is around 14 years old, and the year with the single highest number of Kaydynn births was 2016 (6 babies).
This page is the full Name Census profile for Kaydynn. 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.
Key insights
- • Fewer than 100 living Americans are believed to carry the name Kaydynn. It is among the rarest names in the SSA records.
People living today
11
~ 1 in 31,159,485 Americans
Peak year
2016
6 babies that year
Average age
14
years old
2016 SSA rank
#11,461
Tracked since 2008
Gender
Gender distribution for Kaydynn
Kaydynn is one of the more evenly split names in the SSA data. Of the 11 total registrations, 6 (54.5%) were male and 5 (45.5%) were female.
Kaydynn as a male name
- Ranked #11,461 in 2016
- 6 male births in 2016
- Peak: 2016 (6 births)
Kaydynn as a female name
- Ranked #18,991 in 2008
- 5 female births in 2008
- Peak: 2008 (5 births)
Popularity
Kaydynn: popularity over time
The SSA tracks Kaydynn from the 2000s through to the 2010s, spanning 2 decades of birth certificate data. The biggest single decade for the name was the 2010s, with 6 total registrations. The name continues to be given at rates close to its all-time high, suggesting it has not yet fallen out of fashion.
Babies born per year
Decades
Kaydynn 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 Kaydynn during that decade, along with a combined total. This is useful for spotting eras where the name surged or retreated.
Origin
Meaning and history of Kaydynn
The name Kaydynn has an intriguing history that spans multiple cultures and time periods. It is believed to have its origins in the ancient Celtic language, derived from the word "caid," which means "warrior" or "battle." The name's roots can be traced back to the Iron Age tribes that inhabited the British Isles and parts of modern-day France and Germany.
During the Roman conquest of Britain, the name Kaydynn was documented in various writings and inscriptions, suggesting that it was in use among the Celtic populations that resisted Roman rule. The earliest recorded instance of the name dates back to the 1st century AD, where it appeared in a scroll detailing the battles between the Roman legions and the Celtic tribes.
In the Middle Ages, the name Kaydynn gained popularity among the Gaelic-speaking populations of Ireland and Scotland. It was often associated with warriors and clan leaders who were renowned for their bravery and skill in battle. One notable figure bearing this name was Kaydynn mac Lochlainn, a 12th-century Irish king who ruled over the northern regions of Ulster.
As the centuries passed, the name spread to other parts of Europe, taking on slight variations in spelling and pronunciation. In the 16th century, a French noble named Kaydynn de Montfort gained recognition for his military exploits during the Italian Wars, further cementing the name's association with valor and strength.
The name Kaydynn also found its way into literature and folklore. In the epic Welsh tale of the Mabinogion, a character named Kaydynn ap Gwyndaf played a pivotal role in the story's narrative, showcasing the name's enduring legacy in Celtic mythology.
Throughout history, several notable individuals have borne the name Kaydynn. One such figure was Kaydynn O'Shaughnessy, an Irish patriot and rebel leader who fought against British rule in the late 18th century. Another was Kaydynn MacLeod, a Scottish warrior from the 17th century who led his clan in battles against rival clans and English forces.
In the 20th century, Kaydynn O'Reilly was a renowned Irish author and playwright whose works explored themes of identity, tradition, and the complexities of the human experience. Additionally, Kaydynn Sinclair was a Canadian artist and activist who championed indigenous rights and environmental causes through her powerful paintings and installations.
While the name Kaydynn has evolved over time and across different cultures, its roots remain firmly grounded in the ancient Celtic traditions of valor, strength, and resilience. Its enduring presence throughout history serves as a testament to the lasting impact of these cultural values.
People
Kaydynn + last name combinations
How many people share a full name with Kaydynn 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
Kaydynn: questions and answers
How many people in the U.S. are named Kaydynn?
Name Census puts the figure at roughly 11 living Americans. We arrive at this by taking every SSA birth registration for Kaydynn 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 31,159,485 US residents.
Is Kaydynn a common name?
We classify Kaydynn as "Very Rare". It ranks above 30.8% of all first names in the SSA dataset by living bearers. Across the full history of the data, 11 babies have been registered with this name.
When was Kaydynn most popular?
The single biggest year for Kaydynn was 2016, when 6 babies received the name. The fact that the average living Kaydynn is about 14 years old gives you a rough sense of which era contributed the most bearers who are still alive today.
What does the SSA popularity chart show?
The chart tracks births, not the number of people alive with the name today. Each point shows how many babies were given the name Kaydynn in that year. That makes it useful for spotting when the name rose, peaked, or faded.
Is Kaydynn a male name?
Yes, 54.5% of people registered as Kaydynn 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.
Is Kaydynn still being used today?
Yes. The SSA still recorded Kaydynn in 2024, and the page above shows its latest-year rank where available. A name can be well past its peak and still remain in steady use, especially if it built up a large population over earlier decades.
Why can a name have a lot of living bearers even if it is not trendy now?
Because living-bearer counts and current baby-name popularity measure different things. A name like Kaydynn can build up a very large population over many decades, even if fewer parents are choosing it now than they did at its peak.
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.
Does every first name have Census demographic data?
No. The public Census first-name release only covers names that met the Bureau's publication rules, so many rarer names in the SSA files do not have a published Census demographic snapshot. In those cases, the page still shows the SSA trend, gender history, and state data.
How many people share the name Kaydynn?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.