Zailen is a very rare boys' name that peaked in 2011 and has grown less common since.
Zailen is a boy name. In 2025 it ranked #10,665 for boy births in the United States (and #21,971 across all names), given to 7 babies. Zailen first appears in 2009 and peaked in 2011 (15 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2025 | 7 | 7 | #10,665 |
| 2024 | 8 | 8 | #9,868 |
| 2023 | 10 | 10 | #8,239 |
| 2022 | 7 | 7 | #10,827 |
| 2021 | 9 | 9 | #8,812 |
| 2020 | 7 | 7 | #10,580 |
| 2019 | 9 | 9 | #8,871 |
| 2018 | 7 | 7 | #10,736 |
| 2017 | 9 | 9 | #8,820 |
| 2016 | 8 | 8 | #9,645 |
| 2015 | 5 | 5 | #14,013 |
| 2014 | 13 | 13 | #6,624 |
| 2013 | 12 | 12 | #7,008 |
| 2012 | 10 | 10 | #8,139 |
| 2011 | 15 | 15 | #5,938 |
| 2010 | 10 | 10 | #8,122 |
| 2009 | 11 | 11 | #7,681 |