Ysai
A Spanish masculine name derived from the Hebrew "Yishai".
Name Census estimates that about 5 living Americans carry the first name Ysai. The name is used almost exclusively for boys. The average person named Ysai today is around 4 years old, and the year with the single highest number of Ysai births was 2022 (5 babies).
This page is the full Name Census profile for Ysai. 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 Ysai. It is among the rarest names in the SSA records.
People living today
5
~ 1 in 68,550,868 Americans
Peak year
2022
5 babies that year
Average age
4
years old
2022 SSA rank
#14,273
Tracked since 2022
Popularity
Ysai: popularity over time
Babies born per year
Decades
Ysai 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 Ysai during that decade, along with a combined total. This is useful for spotting eras where the name surged or retreated.
| Decade | Male | Female | Total |
|---|---|---|---|
| 2020s | 5 | 0 | 5 |
Origin
Meaning and history of Ysai
The name Ysai has its origins in the Hebrew language and culture. It is a variant spelling of the Hebrew name Yishay, which is derived from the Hebrew word "yesh," meaning "there is" or "to exist." This name can be traced back to ancient times, around the 11th century BC.
One of the earliest and most notable historical references to the name Ysai is found in the Hebrew Bible, specifically in the Book of Samuel. Ysai, also known as Jesse, was the father of the famous King David of Israel. According to the biblical narrative, Ysai was a resident of Bethlehem and a member of the tribe of Judah.
The earliest recorded individual with the name Ysai is likely the biblical figure mentioned above, Ysai the Bethlehemite, who lived around the 11th century BC. Another notable historical figure with this name was Ysai of Tiberias, a Jewish Talmudic scholar who lived in the 3rd century AD in Tiberias, an ancient city in modern-day Israel.
In the Middle Ages, the name Ysai was used by several prominent individuals. One such person was Ysai ben Avraham ha-Levi, a Jewish philosopher and grammarian who lived in Spain in the 11th century. Another was Ysai ben Yosef ha-Levi, a Jewish scholar and poet who lived in Italy in the 13th century.
During the Renaissance period, the name Ysai gained some popularity among Christians, particularly in Italy. One notable figure from this time was Ysai of Pisa, an Italian painter and architect who lived in the 15th century and is known for his work on the Pisa Cathedral.
In more recent history, the name Ysai has been used by individuals from various cultural backgrounds. One example is Ysai Rendón, a Mexican professional boxer who competed in the early 20th century. Another is Ysai Baer, a German-born Israeli artist who lived from 1911 to 2018 and was known for his abstract expressionist paintings.
People
Ysai + last name combinations
How many people share a full name with Ysai as the first name? Click a combination below to see the estimate, or search any pairing.
Related
Other names starting with Y
Other first names starting with Y with a similar number of bearers.
FAQ
Ysai: questions and answers
How many people in the U.S. are named Ysai?
Name Census puts the figure at roughly 5 living Americans. We arrive at this by taking every SSA birth registration for Ysai 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 Ysai a common name?
We classify Ysai 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 Ysai most popular?
The single biggest year for Ysai was 2022, when 5 babies received the name. The fact that the average living Ysai is about 4 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 Ysai in that year. That makes it useful for spotting when the name rose, peaked, or faded.
Is Ysai a male name?
Yes, 100.0% of people registered as Ysai 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 Ysai still being used today?
Yes. The SSA still recorded Ysai 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 Ysai 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 Ysai?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.