Aleksei is a rare boys' name that peaked in 2001 and has grown less common since.
Aleksei is predominantly a boy name. In 2025 it ranked #7,213 for boy births in the United States (and #15,145 across all names), given to 11 babies. Aleksei first appears in 1994 and peaked in 2001 (25 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 11 | 11 | — | #7,213 |
| 2024 | 17 | 17 | — | #5,453 |
| 2023 | 13 | 13 | — | #6,540 |
| 2022 | 9 | 9 | — | #8,337 |
| 2021 | 11 | 11 | — | #7,116 |
| 2020 | 14 | 14 | — | #5,995 |
| 2019 | 15 | 15 | — | #5,829 |
| 2018 | 15 | 15 | — | #5,781 |
| 2017 | 9 | 9 | — | #8,178 |
| 2016 | 19 | 19 | — | #4,951 |
| 2015 | 7 | 7 | — | #9,615 |
| 2014 | 9 | 9 | — | #8,160 |
| 2013 | 11 | 11 | — | #7,042 |
| 2012 | 11 | 11 | — | #7,075 |
| 2011 | 18 | 18 | — | #4,986 |
| 2010 | 19 | 19 | — | #4,851 |
| 2009 | 13 | 13 | — | #6,442 |
| 2008 | 15 | 15 | — | #5,773 |
| 2007 | 18 | 18 | — | #4,999 |
| 2006 | 23 | 23 | — | #4,106 |
| 2005 | 18 | 18 | — | #4,631 |
| 2004 | 23 | 23 | — | #3,864 |
| 2003 | 16 | 16 | — | #4,817 |
| 2002 | 6 | 6 | — | #9,431 |
| 2001 | 25 | 25 | — | #3,413 |
| 2000 | 18 | 18 | — | #4,206 |
| 1999 | 13 | 13 | — | #5,047 |
| 1998 | 18 | 18 | — | #3,850 |
| 1997 | 16 | — | #12,131 | #5,653 |
| 1996 | 22 | — | #11,854 | #4,024 |
| 1995 | 5 | — | — | #8,911 |
| 1994 | 10 | — | — | #5,461 |