The baby name Katelynn appears in baby name data for the United States from 1983 to 2024. It was most popular in 1998 with 1,891 babies given the name.
In the later years of this period, Katelynn has become less common than it once was.
| Year | Count |
|---|---|
| 1983 | 5 |
| 1984 | 15 |
| 1985 | 52 |
| 1986 | 159 |
| 1987 | 202 |
| 1988 | 416 |
| 1989 | 574 |
| 1990 | 756 |
| 1991 | 978 |
| 1992 | 1,008 |
| 1993 | 1,397 |
| 1994 | 1,262 |
| 1995 | 1,470 |
| 1996 | 1,533 |
| 1997 | 1,515 |
| 1998 | 1,891 |
| 1999 | 1,485 |
| 2000 | 1,474 |
| 2001 | 1,365 |
| 2002 | 1,260 |
| 2003 | 1,376 |
| 2004 | 1,669 |
| 2005 | 1,454 |
| 2006 | 1,517 |
| 2007 | 1,464 |
| 2008 | 1,284 |
| 2009 | 1,024 |
| 2010 | 1,005 |
| 2011 | 921 |
| 2012 | 840 |
| 2013 | 649 |
| 2014 | 559 |
| 2015 | 503 |
| 2016 | 230 |
| 2017 | 154 |
| 2018 | 106 |
| 2019 | 152 |
| 2020 | 126 |
| 2021 | 31 |
| 2022 | 37 |
| 2023 | 12 |
| 2024 | 51 |