The baby name Kaitlin appears in baby name data for the United States from 1977 to 2019. It was most popular in 1991 with 4,535 babies given the name.
In the later years of this period, Kaitlin has become less common than it once was.
| Year | Count |
|---|---|
| 1977 | 9 |
| 1978 | 8 |
| 1979 | 34 |
| 1980 | 79 |
| 1981 | 155 |
| 1982 | 183 |
| 1983 | 447 |
| 1984 | 642 |
| 1985 | 1,350 |
| 1986 | 1,623 |
| 1987 | 2,247 |
| 1988 | 3,252 |
| 1989 | 3,899 |
| 1990 | 3,897 |
| 1990 | 6 |
| 1991 | 4,535 |
| 1992 | 3,440 |
| 1993 | 3,797 |
| 1994 | 4,205 |
| 1995 | 4,236 |
| 1996 | 3,738 |
| 1997 | 3,205 |
| 1998 | 3,531 |
| 1999 | 2,293 |
| 2000 | 2,373 |
| 2001 | 1,983 |
| 2002 | 1,540 |
| 2003 | 1,249 |
| 2004 | 1,378 |
| 2005 | 1,251 |
| 2006 | 1,131 |
| 2007 | 955 |
| 2008 | 740 |
| 2009 | 529 |
| 2010 | 417 |
| 2011 | 341 |
| 2012 | 246 |
| 2013 | 181 |
| 2014 | 169 |
| 2015 | 168 |
| 2016 | 45 |
| 2017 | 32 |
| 2018 | 5 |
| 2019 | 25 |