Kaius is an uncommon boys' name that has climbed to its highest level yet, peaking in 2025.
Kaius is a boy name. In 2025 it ranked #1,029 for boy births in the United States (and #2,104 across all names), given to 216 babies. Kaius first appears in 2005 and peaked in 2025 (216 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2025 | 216 | 216 | #1,029 |
| 2024 | 186 | 186 | #1,135 |
| 2023 | 189 | 189 | #1,121 |
| 2022 | 177 | 177 | #1,163 |
| 2021 | 180 | 180 | #1,132 |
| 2020 | 202 | 202 | #1,023 |
| 2019 | 169 | 169 | #1,155 |
| 2018 | 115 | 115 | #1,502 |
| 2017 | 94 | 94 | #1,691 |
| 2016 | 114 | 114 | #1,496 |
| 2015 | 110 | 110 | #1,508 |
| 2014 | 85 | 85 | #1,773 |
| 2013 | 45 | 45 | #2,645 |
| 2012 | 34 | 34 | #3,271 |
| 2011 | 27 | 27 | #3,844 |
| 2010 | 14 | 14 | #6,207 |
| 2009 | 15 | 15 | #5,949 |
| 2008 | 15 | 15 | #5,925 |
| 2007 | 10 | 10 | #7,882 |
| 2006 | 7 | 7 | #10,119 |
| 2005 | 7 | 7 | #9,626 |