What does Kaius mean?
Kaius means “rejoice”.
As a form of Caius, Kaius is associated with the meaning “rejoice”. It is recorded in Latin naming traditions.
Nicknames & variations
No nicknames or variations are listed for Kaius yet.
How popular is Kaius?
United States · 2025Explore how often Kaius is used and how its ranking has changed.
- US boys rank
- #1,029 2025 · #1 is most popular
- Boys named Kaius
- 216 Recorded births in 2025
- Change in births
- 16.1% More than 2024
Kaius over time
United States · Boys
Recorded births
Hover or tap the chart, or move the slider. You can also use the keyboard arrow keys.
Yearly data & usage
Rankings are calculated separately for girls and boys. The summary highlights boys, the most common recorded usage in 2025.
| Year | Usage | US rank | Births |
|---|---|---|---|
| 2025 | Boys | #1,029 | 216 |
| 2024 | Boys | #1,135 | 186 |
| 2023 | Boys | #1,121 | 189 |
| 2022 | Boys | #1,163 | 177 |
| 2021 | Boys | #1,132 | 180 |
| 2020 | Boys | #1,023 | 202 |
| 2019 | Boys | #1,155 | 169 |
| 2018 | Boys | #1,502 | 115 |
| 2017 | Boys | #1,691 | 94 |
| 2016 | Boys | #1,496 | 114 |
| 2015 | Boys | #1,508 | 110 |
| 2014 | Boys | #1,773 | 85 |
Years reflect available birth records. Missing records do not mean zero births.
Names like Kaius
Explore the connection, then save your favorites to compare.
Caius
Mostly boys- Meaning
- Rejoice
Shares the recorded meaning “rejoice” with Kaius.
Oliver
Mostly boys- Meaning
- Elf army; ancestor's relic; olive tree
Shares an origin with Kaius.
Lucas
Mostly boys- Meaning
- Man from Lucania
Shares an origin with Kaius.
Sebastian
Mostly boys- Meaning
- Person from ancient city of Sebastia, venerable
Shares an origin with Kaius.
Leo
Mostly boys- Meaning
- Lion
Shares an origin with Kaius.
Julian
Mostly boys- Meaning
- Uncertain; proposed meanings include youthful or downy-bearded
Shares an origin with Kaius.
Found a few you like?
Save them, then compare up to four names in your shortlist.