Kaius

Kaius - A very unique male name

Kaius appeared on the charts for the first time in 2011 on position #3623. In this article you'll learn the history of this name, statistics, see famous people named Kaius and more.
Are you having a baby or looking to learn more about the name Kaius? Our experts and editorial staff have gathered trends and insights for 30,000+ baby names over the last 100 years -- And on this page you will learn everything you ever wanted to know about the name Kaius. The baby boy name Kaius was given to 160 baby boys in 2025, ranking #1045 on the national boy baby name top chart.


With that position 1 in 9,164 baby boys were given this name - making this a very unique male name according to our Popularity Score algorithm. Kaius peaked in popularity 1 years ago in 2025 on position 1045.

Famous with this name

How would you rate Kaius, 1-5?

Kaius is currently topping the charts in...

Did you know that popularity can vary a lot between states? Kaius is currently topping the baby name charts in Louisiana at position #721 - and is the least popular in Illinois at position #1,203.

Why care about state specific baby name charts? It could be that a name that is very popular on the national overall charts is less (or even more) popular where you live. So make sure you check out the state specific charts below and find out how popular or unique Kaius is where you live.

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Kaius origin and meaning

Modern variant of Caius (Latin)

Uncertain — Caius is an old Roman name of disputed origin, often linked to Latin gaudere, 'to rejoice,' without proof

Kaius is a K-spelled revival of Caius, a Roman praenomen borne by figures such as Gaius Julius Caesar (with G and C spellings interchangeable in Latin). The Kaius spelling appears in US data only from 2011 and reached its peak in 2025. Caius's own etymology is genuinely disputed, which is why this profile is marked uncertain.

Origin uncertain

Kaius is a 5 letter name with 2 syllables.

To see famous people named Kaius, pop culture references for the name Kaius and nicknames & variations - visit Nameberry or Wikipedia.

Similar to Kaius

We've found the following names that sound similar to Kaius, sorted by popularity.

Kai / Kash / Kasey / Koa / Kase / Kye / Kayce / Kace / Khai / Kay /

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Name statistics

Most parents-to-be know if they want a popular or unique name, and with these charts and data tables you can easily get a better understanding of how popular or unique this name is.

With a quick glance you can easily tell if this name is increasing or declining in popularity - But note that its current popularity can actually differ a lot from state to state.

Chart position per year (visualized)

Chart position per state (visualized)

Chart position per year (table view)

Chart position per state (table view)

Even more about Kaius

These are some of the common questions you may want to have answered to know if this is the perfect name for your baby.

Is Kaius a common or unique name?

By analyzing the number of births and frequency of this name we've determined that it's currently a very unique male name.

What is the number of syllables for the name Kaius?

2 syllables. Why is this important? One of the things that makes a baby name sound good and have a nice rythm is the number of syllables - and especially the number of syllables along with the syllable count for your last name. A simple rule is to avoid having the same number of syllables in your first, middle and last name.

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Pronunciation

KY-us · /ˈkaɪəs/

Around the world

• Caius / Gaius (Latin) — The original Roman form of the name, used in ancient Rome.

Spellings and nicknames

• Caius — The classical C-spelling of the same name.
• Kias — Shortened spelling, rarely recorded.

Nicknames: Kai

Famous bearers

None yet — the name first appears in the data in 2011, and its oldest bearers are still young.

Style

ClassicModern coinage

Why parents choose it

Kaius appeals to parents who want an ancient Roman silhouette with a modern K and the fashionable Kai built in. It is at its highest use yet, still uncommon but clearly rising in visibility.

Worth knowing

• Pronunciation splits between KY-us and KAY-us; be ready to state your choice.
• Often confused with the unrelated name Kai plus an s.