Kaisan is a very rare variant of Kayson that peaked in 2020 and remains in steady use.
Kaisan is a boy name. In 2025 it ranked #8,580 for boy births in the United States (and #17,786 across all names), given to 9 babies. Kaisan first appears in 2009 and peaked in 2020 (13 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2025 | 9 | 9 | #8,580 |
| 2024 | 11 | 11 | #7,501 |
| 2023 | 7 | 7 | #10,228 |
| 2022 | 5 | 5 | #13,290 |
| 2021 | 11 | 11 | #7,353 |
| 2020 | 13 | 13 | #6,465 |
| 2018 | 8 | 8 | #9,217 |
| 2017 | 10 | 10 | #7,863 |
| 2016 | 7 | 7 | #10,203 |
| 2015 | 7 | 7 | #10,072 |
| 2014 | 5 | 5 | #13,053 |
| 2012 | 6 | 6 | #11,524 |
| 2011 | 5 | 5 | #13,323 |
| 2009 | 7 | 7 | #10,421 |