Kyros
A Greek name meaning "master" or "lord".
Name Census estimates that about 156 living Americans carry the first name Kyros. The name is used almost exclusively for boys. The average person named Kyros today is around 10 years old, and the year with the single highest number of Kyros births was 2021 (19 babies).
This page is the full Name Census profile for Kyros. 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 Kyros with official rankings and popularity over time.
People living today
156
~ 1 in 2,197,143 Americans
Peak year
2021
19 babies that year
Average age
10
years old
2024 SSA rank
#10,445
Tracked since 2001
Popularity
Kyros: popularity over time
The SSA tracks Kyros 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 84 total registrations. Although the numbers have come down from the 2010s peak, Kyros remains solidly in use and shows no sign of disappearing from maternity wards.
Babies born per year
Decades
Kyros 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 Kyros during that decade, along with a combined total. This is useful for spotting eras where the name surged or retreated.
Geography
Where Kyros' live
Origin
Meaning and history of Kyros
The given name Kyros has its origins in the ancient Greek language, with roots dating back to the 5th century BCE. It is believed to be derived from the Greek word "kyrios," which translates to "lord" or "master." This name was often associated with power, authority, and sovereignty in ancient Greek culture.
One of the earliest recorded mentions of the name Kyros can be found in the writings of the ancient Greek historian Herodotus. He chronicled the life and conquests of Cyrus the Great, the founder of the Achaemenid Persian Empire, who lived from around 600 BCE to 530 BCE. It is possible that the name Kyros is a variant spelling or transliteration of Cyrus, the Greek form of the Persian name.
In ancient Greek mythology, Kyros was also the name of a minor deity associated with the sun and its life-giving properties. This connection with celestial bodies and the natural world further reinforced the name's connotations of power and reverence.
Throughout history, several notable figures have borne the name Kyros. One of the earliest was Kyros the Younger, a Persian prince who lived from around 424 BCE to 401 BCE and was known for his failed attempt to seize the Persian throne from his brother Artaxerxes II.
Another prominent individual with this name was Kyros of Pandosia, a Greek philosopher and mathematician from the 5th century BCE who made significant contributions to the field of geometry.
In the realm of literature, Kyros was also the name of a character in the ancient Greek novel "An Ephesian Tale" by Xenophon of Ephesus, written in the 2nd or 3rd century CE. This fictional figure played a central role in the story's themes of love, adventure, and perseverance.
During the Byzantine era, the name Kyros was borne by several emperors and high-ranking officials, including Kyros Pankaleos, a prominent general and statesman who lived in the 11th century CE and played a significant role in the military campaigns of the Byzantine Empire.
In more recent times, the name Kyros has been associated with various figures in academic and intellectual circles. For example, Kyros Andronikos, a Greek archaeologist and professor, was instrumental in the excavation and preservation of ancient sites in Greece during the 20th century.
People
Kyros + last name combinations
How many people share a full name with Kyros 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
Kyros: questions and answers
How many people in the U.S. are named Kyros?
Name Census puts the figure at roughly 156 living Americans. We arrive at this by taking every SSA birth registration for Kyros 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 2,197,143 US residents.
Is Kyros a common name?
We classify Kyros as "Very Rare". It ranks above 70.8% of all first names in the SSA dataset by living bearers. Across the full history of the data, 157 babies have been registered with this name.
When was Kyros most popular?
The single biggest year for Kyros was 2021, when 19 babies received the name. The fact that the average living Kyros is about 10 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 Kyros in that year. That makes it useful for spotting when the name rose, peaked, or faded.
Is Kyros a male name?
Yes, 100.0% of people registered as Kyros 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 Kyros still being used today?
Yes. The SSA still recorded Kyros 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 Kyros 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 Americans are named Kyros?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.