Kilian is an uncommon variant of Killian that has climbed to its highest level yet, peaking in 2023.
Kilian is predominantly a boy name. In 2025 it ranked #1,167 for boy births in the United States (and #2,400 across all names), given to 177 babies — 186 including U.S. territories. Kilian was first reported in SSA data in 1970 and peaked in 2023 (212 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 177 | 186 | — | #1,167 |
| 2024 | 209 | 209 | — | #1,053 |
| 2023 | 212 | 225 | — | #1,032 |
| 2022 | 161 | 169 | — | #1,223 |
| 2021 | 168 | 173 | — | #1,176 |
| 2020 | 154 | 160 | — | #1,223 |
| 2019 | 138 | 154 | #14,742 | #1,359 |
| 2018 | 145 | 155 | — | #1,273 |
| 2017 | 162 | 182 | — | #1,161 |
| 2016 | 161 | 170 | — | #1,180 |
| 2015 | 132 | 138 | — | #1,337 |
| 2014 | 91 | 91 | — | #1,686 |
| 2013 | 41 | 41 | — | #2,825 |
| 2012 | 59 | 59 | — | #2,225 |
| 2011 | 46 | 46 | #15,859 | #2,932 |
| 2010 | 48 | 48 | #18,516 | #2,811 |
| 2009 | 47 | 47 | — | #2,642 |
| 2008 | 44 | 44 | — | #2,772 |
| 2007 | 36 | 36 | — | #3,163 |
| 2006 | 35 | 35 | — | #3,127 |
| 2005 | 26 | 26 | — | #3,678 |
| 2004 | 37 | 37 | #17,523 | #3,122 |
| 2003 | 21 | 21 | — | #4,059 |
| 2002 | 20 | 20 | — | #4,129 |
| 2001 | 32 | 32 | — | #2,903 |
| 2000 | 22 | 22 | — | #3,711 |
| 1999 | 25 | 25 | — | #3,238 |
| 1998 | 21 | 21 | — | #3,557 |
| 1997 | 25 | — | #14,962 | #3,533 |
| 1996 | 25 | — | — | #2,981 |
| 1995 | 25 | — | — | #2,890 |
| 1994 | 20 | — | — | #3,407 |
| 1993 | 20 | — | — | #3,319 |
| 1992 | 28 | — | — | #2,577 |
| 1991 | 16 | — | — | #3,745 |
| 1990 | 18 | — | — | #3,395 |
| 1989 | 12 | — | — | #4,416 |
| 1988 | 10 | — | — | #4,618 |
| 1984 | 6 | — | — | #5,999 |
| 1982 | 5 | — | — | #6,905 |
| 1978 | 6 | — | — | #5,457 |
| 1977 | 6 | — | — | #5,516 |
| 1976 | 6 | — | — | #5,300 |
| 1975 | 8 | — | — | #4,135 |
| 1972 | 6 | — | — | #4,733 |
| 1970 | 5 | — | — | #5,108 |