Klein is a rare boys' name that peaked in 2013 and remains in steady use.
Klein is a boy name. In 2025 it ranked #5,506 for boy births in the United States (and #11,613 across all names), given to 17 babies. Klein first appears in 1984 and peaked in 2013 (25 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2025 | 17 | 17 | #5,506 |
| 2024 | 14 | 14 | #6,345 |
| 2023 | 16 | 16 | #5,810 |
| 2022 | 14 | 14 | #6,341 |
| 2021 | 15 | 15 | #5,912 |
| 2020 | 8 | 8 | #9,184 |
| 2019 | 19 | 19 | #5,066 |
| 2018 | 18 | 18 | #5,220 |
| 2017 | 15 | 15 | #5,953 |
| 2016 | 12 | 12 | #6,955 |
| 2015 | 17 | 17 | #5,415 |
| 2014 | 10 | 10 | #7,885 |
| 2013 | 25 | 25 | #4,017 |
| 2012 | 14 | 14 | #6,182 |
| 2011 | 7 | 7 | #10,281 |
| 2010 | 8 | 8 | #9,288 |
| 2009 | 7 | 7 | #10,512 |
| 2008 | 10 | 10 | #8,036 |
| 2007 | 11 | 11 | #7,384 |
| 2006 | 5 | 5 | #13,141 |
| 2005 | 7 | 7 | #9,682 |
| 2003 | 7 | 7 | #9,214 |
| 2002 | 8 | 8 | #8,106 |
| 2001 | 12 | 12 | #5,877 |
| 2000 | 6 | 6 | #9,782 |
| 1999 | 6 | 6 | #9,372 |
| 1998 | 9 | 9 | #6,601 |
| 1997 | 7 | — | #7,739 |
| 1996 | 7 | — | #7,595 |
| 1995 | 5 | — | #9,666 |
| 1993 | 7 | — | #7,243 |
| 1990 | 6 | — | #7,681 |
| 1988 | 5 | — | #7,960 |
| 1987 | 10 | — | #4,428 |
| 1984 | 6 | — | #6,006 |