Katelynn is an established variant of Katelyn that peaked in 1998 and has since faded.
Katelynn is predominantly a girl name. In 2025 it ranked #2,736 for girl births in the United States (and #4,820 across all names), given to 63 babies. Katelynn was first reported in SSA data in 1979 and peaked in 1998 (1,457 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 63 | 63 | #2,736 | — |
| 2024 | 81 | 81 | #2,294 | — |
| 2023 | 70 | 70 | #2,536 | — |
| 2022 | 71 | 71 | #2,516 | — |
| 2021 | 102 | 102 | #1,934 | — |
| 2020 | 146 | 146 | #1,472 | — |
| 2019 | 182 | 182 | #1,277 | — |
| 2018 | 188 | 188 | #1,242 | — |
| 2017 | 188 | 188 | #1,261 | — |
| 2016 | 249 | 249 | #1,050 | — |
| 2015 | 441 | 441 | #652 | — |
| 2014 | 542 | 542 | #566 | — |
| 2013 | 619 | 619 | #487 | — |
| 2012 | 737 | 737 | #427 | — |
| 2011 | 839 | 839 | #380 | — |
| 2010 | 1,028 | 1,028 | #312 | — |
| 2009 | 1,031 | 1,031 | #317 | — |
| 2008 | 1,138 | 1,138 | #293 | — |
| 2007 | 1,206 | 1,206 | #283 | — |
| 2006 | 1,217 | 1,217 | #273 | — |
| 2005 | 1,113 | 1,113 | #294 | — |
| 2004 | 1,269 | 1,269 | #255 | — |
| 2003 | 1,273 | 1,273 | #257 | — |
| 2002 | 1,271 | 1,271 | #250 | — |
| 2001 | 1,293 | 1,293 | #248 | — |
| 2000 | 1,388 | 1,388 | #229 | — |
| 1999 | 1,369 | 1,369 | #234 | #10,784 |
| 1998 | 1,457 | 1,457 | #210 | — |
| 1997 | 1,281 | — | #236 | — |
| 1996 | 1,284 | — | #224 | — |
| 1995 | 1,238 | — | #228 | — |
| 1994 | 1,066 | — | #262 | — |
| 1993 | 1,194 | — | #235 | — |
| 1992 | 927 | — | #300 | — |
| 1991 | 800 | — | #331 | — |
| 1990 | 695 | — | #378 | — |
| 1989 | 549 | — | #449 | #7,448 |
| 1988 | 427 | — | #518 | — |
| 1987 | 244 | — | #743 | — |
| 1986 | 188 | — | #883 | — |
| 1985 | 106 | — | #1,272 | — |
| 1984 | 58 | — | #1,849 | — |
| 1983 | 28 | — | #3,019 | — |
| 1982 | 13 | — | #5,355 | — |
| 1981 | 9 | — | #7,051 | — |
| 1980 | 8 | — | #7,729 | — |
| 1979 | 5 | — | #10,929 | — |