The baby name Kellyn appears in baby name data for the United States from 1984 to 2014. It was most popular in 1987 with 32 babies given the name.
In the later years of this period, Kellyn has become less common than it once was.
| Year | Count |
|---|---|
| 1984 | 10 |
| 1985 | 7 |
| 1986 | 23 |
| 1987 | 32 |
| 1988 | 19 |
| 1989 | 15 |
| 1992 | 6 |
| 1994 | 20 |
| 1996 | 18 |
| 2000 | 10 |
| 2003 | 10 |
| 2004 | 10 |
| 2006 | 5 |
| 2007 | 7 |
| 2008 | 5 |
| 2010 | 5 |
| 2011 | 10 |
| 2012 | 5 |
| 2014 | 5 |