The baby name Leonidas appears in baby name data for the United States from 1917 to 2024. It was most popular in 2021 with 858 babies given the name.
In the later years of this period, Leonidas has become more popular compared with earlier years.
| Year | Count |
|---|---|
| 1917 | 5 |
| 1964 | 5 |
| 1979 | 7 |
| 1985 | 6 |
| 1992 | 6 |
| 1999 | 6 |
| 2003 | 15 |
| 2004 | 5 |
| 2005 | 5 |
| 2007 | 66 |
| 2008 | 213 |
| 2009 | 122 |
| 2010 | 154 |
| 2011 | 133 |
| 2012 | 285 |
| 2013 | 332 |
| 2014 | 510 |
| 2015 | 618 |
| 2016 | 723 |
| 2017 | 616 |
| 2018 | 625 |
| 2019 | 681 |
| 2020 | 561 |
| 2021 | 858 |
| 2022 | 771 |
| 2023 | 623 |
| 2024 | 595 |