Ieuan
Welsh name derived from the biblical name John, meaning "God is gracious".
Name Census estimates that about 5 living Americans carry the first name Ieuan. The name is used almost exclusively for boys. The average person named Ieuan today is around 18 years old, and the year with the single highest number of Ieuan births was 2008 (5 babies).
This page is the full Name Census profile for Ieuan. 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.
For a British comparison, Name Census UK has a UK baby-name profile for Ieuan with official rankings and popularity over time.
Key insights
- • Fewer than 100 living Americans are believed to carry the name Ieuan. It is among the rarest names in the SSA records.
People living today
5
~ 1 in 68,550,868 Americans
Peak year
2008
5 babies that year
Average age
18
years old
2008 SSA rank
#13,279
Tracked since 2008
Popularity
Ieuan: popularity over time
Babies born per year
Decades
Ieuan 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 Ieuan during that decade, along with a combined total. This is useful for spotting eras where the name surged or retreated.
| Decade | Male | Female | Total |
|---|---|---|---|
| 2000s | 5 | 0 | 5 |
Origin
Meaning and history of Ieuan
The name Ieuan has its origins in the Welsh language and culture, tracing back to the Middle Ages. It is a Welsh form of the name John, derived from the Hebrew name Yochanan, meaning "Yahweh is gracious." The earliest known spelling of the name was Ieuan, which later evolved into other variations such as Evan and Ivan.
In Welsh history, the name Ieuan was associated with several notable figures. One of the earliest recorded instances was Ieuan ap Rhydderch, a Welsh nobleman who lived in the 12th century and was known for his bravery in battles against the Normans. Another notable bearer of the name was Ieuan Brydydd Hir (Ieuan the Tall Poet), a 14th-century Welsh poet renowned for his intricate and lyrical compositions.
The name Ieuan also appeared in some Welsh literary works, such as the medieval prose tales known as the Mabinogion. One of the characters in the tale of Culhwch and Olwen was named Ieuan Lawnbedydd, or Ieuan the Tall.
Throughout history, there have been several prominent individuals who bore the name Ieuan. One example is Ieuan ap Rhydderch ap Ieuan Llwyd (c. 1349-1405), a Welsh nobleman and military leader who played a crucial role in the Glyndŵr Rising against English rule in the early 15th century. Another notable figure was Ieuan Deulwyn (c. 1460-1532), a Welsh Renaissance humanist scholar and grammarian known for his work on the Welsh language.
In the realm of religion, Ieuan Brynach (1544-1598) was a Welsh Roman Catholic martyr who was executed for his faith during the Protestant Reformation. Additionally, Ieuan Gwyllt (c. 1530-1620), also known as Evan Pritchard, was a Welsh Anglican clergyman and author who wrote extensively on theological subjects.
Other historical figures with the name Ieuan include Ieuan Ddu o Ial (c. 1595-1666), a Welsh poet and author, and Ieuan Llwyd (1625-1677), a Welsh antiquarian and scholar who made significant contributions to the study of Welsh history and literature.
People
Ieuan + last name combinations
How many people share a full name with Ieuan as the first name? Click a combination below to see the estimate, or search any pairing.
Related
Other names starting with I
Other first names starting with I with a similar number of bearers.
FAQ
Ieuan: questions and answers
How many people in the U.S. are named Ieuan?
Name Census puts the figure at roughly 5 living Americans. We arrive at this by taking every SSA birth registration for Ieuan 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 68,550,868 US residents.
Is Ieuan a common name?
We classify Ieuan as "Very Rare". It ranks above 18.2% of all first names in the SSA dataset by living bearers. Across the full history of the data, 5 babies have been registered with this name.
When was Ieuan most popular?
The single biggest year for Ieuan was 2008, when 5 babies received the name. The fact that the average living Ieuan is about 18 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 Ieuan in that year. That makes it useful for spotting when the name rose, peaked, or faded.
Is Ieuan a male name?
Yes, 100.0% of people registered as Ieuan 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 Ieuan still being used today?
Yes. The SSA still recorded Ieuan 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 Ieuan 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 Ieuan?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.