Katlyn is an established variant of Kaitlyn that peaked in 1995 and has since faded.
Katlyn is predominantly a girl name. In 2025 it ranked #8,612 for girl births in the United States (and #14,703 across all names), given to 12 babies. Katlyn was first reported in SSA data in 1979 and peaked in 1995 (1,260 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 12 | 12 | #8,612 | — |
| 2024 | 23 | 23 | #5,528 | — |
| 2023 | 21 | 21 | #5,852 | — |
| 2022 | 15 | 15 | #7,457 | — |
| 2021 | 8 | 8 | #11,636 | — |
| 2020 | 11 | 11 | #9,237 | — |
| 2019 | 27 | 27 | #4,974 | — |
| 2018 | 26 | 26 | #5,078 | — |
| 2017 | 19 | 19 | #6,412 | — |
| 2016 | 30 | 30 | #4,679 | — |
| 2015 | 50 | 50 | #3,277 | — |
| 2014 | 60 | 60 | #2,869 | — |
| 2013 | 66 | 66 | #2,675 | — |
| 2012 | 83 | 83 | #2,275 | — |
| 2011 | 118 | 118 | #1,743 | — |
| 2010 | 145 | 145 | #1,540 | — |
| 2009 | 195 | 195 | #1,256 | — |
| 2008 | 217 | 217 | #1,181 | — |
| 2007 | 275 | 275 | #978 | — |
| 2006 | 348 | 348 | #788 | — |
| 2005 | 457 | 457 | #619 | — |
| 2004 | 515 | 515 | #553 | — |
| 2003 | 566 | 566 | #505 | — |
| 2002 | 694 | 694 | #418 | — |
| 2001 | 848 | 848 | #352 | — |
| 2000 | 962 | 962 | #330 | — |
| 1999 | 1,071 | 1,071 | #290 | — |
| 1998 | 1,183 | 1,183 | #262 | — |
| 1997 | 1,232 | — | #242 | — |
| 1996 | 1,186 | — | #236 | — |
| 1995 | 1,260 | — | #223 | — |
| 1994 | 1,132 | — | #243 | — |
| 1993 | 1,066 | — | #260 | — |
| 1992 | 945 | — | #297 | — |
| 1991 | 864 | — | #312 | — |
| 1990 | 779 | — | #343 | — |
| 1989 | 620 | — | #401 | #8,572 |
| 1988 | 505 | — | #448 | — |
| 1987 | 294 | — | #641 | — |
| 1986 | 201 | — | #829 | — |
| 1985 | 141 | — | #1,052 | — |
| 1984 | 72 | — | #1,573 | — |
| 1983 | 34 | — | #2,620 | — |
| 1982 | 24 | — | #3,474 | — |
| 1981 | 19 | — | #4,069 | — |
| 1980 | 12 | — | #5,693 | — |
| 1979 | 7 | — | #8,454 | — |