The baby name Kierstyn appears in baby name data for the United States from 1990 to 2018. It was most popular in 2004 with 143 babies given the name.
In the later years of this period, Kierstyn has become more popular compared with earlier years.
| Year | Count |
|---|---|
| 1990 | 5 |
| 1991 | 8 |
| 1992 | 10 |
| 1993 | 25 |
| 1994 | 6 |
| 1995 | 9 |
| 1996 | 25 |
| 1997 | 10 |
| 1998 | 13 |
| 1999 | 60 |
| 2000 | 40 |
| 2001 | 49 |
| 2002 | 58 |
| 2003 | 41 |
| 2004 | 143 |
| 2005 | 113 |
| 2006 | 109 |
| 2007 | 112 |
| 2008 | 47 |
| 2009 | 101 |
| 2010 | 67 |
| 2011 | 34 |
| 2012 | 12 |
| 2013 | 19 |
| 2016 | 12 |
| 2017 | 10 |
| 2018 | 10 |