The baby name Kelby appears in baby name data for the United States from 1971 to 2018. It was most popular in 1993 with 124 babies given the name.
In the later years of this period, Kelby has become more popular compared with earlier years.
| Year | Count |
|---|---|
| 1971 | 5 |
| 1972 | 10 |
| 1973 | 6 |
| 1974 | 6 |
| 1978 | 12 |
| 1979 | 5 |
| 1980 | 10 |
| 1983 | 6 |
| 1984 | 5 |
| 1985 | 16 |
| 1986 | 29 |
| 1987 | 35 |
| 1988 | 55 |
| 1989 | 80 |
| 1990 | 72 |
| 1991 | 23 |
| 1991 | 115 |
| 1992 | 35 |
| 1992 | 86 |
| 1993 | 124 |
| 1994 | 121 |
| 1995 | 16 |
| 1995 | 64 |
| 1996 | 12 |
| 1996 | 35 |
| 1997 | 32 |
| 1997 | 47 |
| 1998 | 5 |
| 1998 | 111 |
| 1999 | 87 |
| 2000 | 36 |
| 2001 | 6 |
| 2001 | 77 |
| 2002 | 8 |
| 2002 | 9 |
| 2003 | 6 |
| 2003 | 83 |
| 2004 | 16 |
| 2004 | 55 |
| 2005 | 5 |
| 2005 | 29 |
| 2006 | 6 |
| 2006 | 17 |
| 2007 | 7 |
| 2007 | 35 |
| 2008 | 61 |
| 2009 | 6 |
| 2010 | 8 |
| 2010 | 20 |
| 2011 | 6 |
| 2011 | 28 |
| 2012 | 5 |
| 2012 | 10 |
| 2013 | 5 |
| 2014 | 16 |
| 2018 | 5 |