Kyliam
A masculine name blending the names Kyle and William.
Name Census estimates that about 165 living Americans carry the first name Kyliam. The name is used almost exclusively for boys. The average person named Kyliam today is around 3 years old, and the year with the single highest number of Kyliam births was 2023 (55 babies).
This page is the full Name Census profile for Kyliam. 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
165
~ 1 in 2,077,299 Americans
Peak year
2023
55 babies that year
Average age
3
years old
2024 SSA rank
#2,486
Tracked since 2018
Popularity
Kyliam: popularity over time
The SSA tracks Kyliam from the 2010s through to the 2020s, spanning 2 decades of birth certificate data. The biggest single decade for the name was the 2020s, with 161 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
Kyliam 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 Kyliam during that decade, along with a combined total. This is useful for spotting eras where the name surged or retreated.
Geography
Where Kyliams live
The SSA's state-level files cover 5 states and territories. Texas, Florida, California recorded the most babies named Kyliam, while New York, Maryland, California recorded the fewest. The average across all reporting states is about 11 registrations each.
Origin
Meaning and history of Kyliam
The given name Kyliam has its origins in the Celtic languages of ancient Britain and Ireland. It is derived from the Old Welsh word "cylch" meaning "circle" or "hoop," and the suffix "-iam" which is a variation of the common Welsh patronymic suffix "-am." The name Kyliam would have been used as early as the 5th or 6th century AD in the regions that are now Wales and parts of western England.
One of the earliest known references to the name Kyliam can be found in the Harleian Genealogies, a collection of Welsh genealogical manuscripts dating back to the 12th century. These manuscripts record the lineage of several Welsh royal and noble families, including a figure named Kyliam ap Rhys, who lived in the late 10th century.
In the realm of literature, the name Kyliam appears in the Welsh Triads, a series of traditional narratives and wisdom texts compiled in the Middle Ages. One of the Triads mentions a character named Kyliam Fen, described as one of the "Three Faithful Youths" of Welsh folklore.
During the medieval period, the name Kyliam was particularly popular among the Welsh gentry and nobility. One notable bearer of the name was Kyliam ap Gruffydd (c. 1300 - c. 1370), a Welsh landowner and military commander who fought alongside Owain Glyndŵr in the Welsh Revolt against the English in the early 15th century.
In more recent times, the name Kyliam has been borne by several individuals of note, including Kyliam Eddowes (1787 - 1868), a Welsh philanthropist and industrialist who made significant contributions to the development of the iron industry in South Wales. Another notable figure was Kyliam Jones (1865 - 1942), a Welsh trade unionist and political activist who played a pivotal role in the establishment of the Labour Party in Wales.
While the name Kyliam is relatively uncommon in modern times, it has maintained a presence in Wales and other parts of the Celtic diaspora, serving as a reminder of the rich cultural heritage and linguistic traditions of the region.
People
Kyliam + last name combinations
How many people share a full name with Kyliam 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
Kyliam: questions and answers
How many people in the U.S. are named Kyliam?
Name Census puts the figure at roughly 165 living Americans. We arrive at this by taking every SSA birth registration for Kyliam 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 2,077,299 US residents.
Is Kyliam a common name?
We classify Kyliam as "Very Rare". It ranks above 71.6% of all first names in the SSA dataset by living bearers. Across the full history of the data, 166 babies have been registered with this name.
When was Kyliam most popular?
The single biggest year for Kyliam was 2023, when 55 babies received the name. The fact that the average living Kyliam is about 3 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 Kyliam in that year. That makes it useful for spotting when the name rose, peaked, or faded.
Is Kyliam a male name?
Yes, 100.0% of people registered as Kyliam 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 Kyliam still being used today?
Yes. The SSA still recorded Kyliam 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 Kyliam 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 have the name Kyliam?
For a quick modern take, check how many people share the name Kyliam on our sister site HowManyOfMe.org.