Kiefer is a rare boys' name that peaked in 1991 and has since faded.
Kiefer is a boy name. In 2025 it ranked #11,399 for boy births in the United States (and #23,480 across all names), given to 6 babies. Kiefer was first reported in SSA data in 1988 and peaked in 1991 (204 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2025 | 6 | 6 | #11,399 |
| 2024 | 5 | 5 | #13,355 |
| 2023 | 6 | 6 | #11,612 |
| 2021 | 11 | 11 | #7,385 |
| 2020 | 10 | 10 | #7,824 |
| 2019 | 9 | 9 | #8,573 |
| 2018 | 12 | 12 | #6,947 |
| 2017 | 17 | 17 | #5,420 |
| 2016 | 21 | 21 | #4,703 |
| 2015 | 26 | 26 | #4,034 |
| 2014 | 32 | 32 | #3,423 |
| 2013 | 23 | 23 | #4,254 |
| 2012 | 36 | 36 | #3,146 |
| 2011 | 31 | 31 | #3,481 |
| 2010 | 49 | 49 | #2,533 |
| 2009 | 48 | 48 | #2,608 |
| 2008 | 55 | 55 | #2,363 |
| 2007 | 65 | 65 | #2,104 |
| 2006 | 84 | 84 | #1,693 |
| 2005 | 64 | 64 | #1,975 |
| 2004 | 68 | 68 | #1,823 |
| 2003 | 61 | 61 | #1,922 |
| 2002 | 57 | 57 | #1,961 |
| 2001 | 24 | 24 | #3,574 |
| 2000 | 33 | 33 | #2,780 |
| 1999 | 52 | 52 | #1,891 |
| 1998 | 53 | 53 | #1,861 |
| 1997 | 71 | — | #1,493 |
| 1996 | 68 | — | #1,491 |
| 1995 | 70 | — | #1,425 |
| 1994 | 97 | — | #1,158 |
| 1993 | 97 | — | #1,146 |
| 1992 | 114 | — | #1,028 |
| 1991 | 204 | — | #710 |
| 1990 | 143 | — | #855 |
| 1989 | 93 | — | #1,100 |
| 1988 | 35 | — | #1,896 |