Cassey is a rare variant of Cassie that peaked in 1986 and has since faded.
Cassey is predominantly a girl name. It last appears in U.S. records in 2021. Cassey was first reported in SSA data in 1968 and peaked in 1986 (98 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2021 | 7 | 7 | #12,469 | — |
| 2020 | 5 | 5 | #15,588 | — |
| 2019 | 8 | 8 | #11,576 | — |
| 2018 | 5 | 5 | #16,169 | — |
| 2016 | 10 | 10 | #10,250 | — |
| 2014 | 6 | 6 | #14,956 | — |
| 2013 | 12 | 12 | #9,147 | — |
| 2012 | 10 | 10 | #10,597 | — |
| 2011 | 6 | 6 | #15,212 | — |
| 2010 | 8 | 8 | #12,503 | — |
| 2009 | 15 | 15 | #8,137 | — |
| 2008 | 10 | 10 | #10,958 | — |
| 2007 | 11 | 11 | #10,265 | — |
| 2006 | 14 | 14 | #8,326 | — |
| 2005 | 11 | 11 | #9,577 | — |
| 2004 | 16 | 16 | #7,146 | — |
| 2003 | 25 | 25 | #4,972 | — |
| 2002 | 20 | 20 | #5,714 | — |
| 2001 | 34 | 34 | #3,799 | — |
| 2000 | 48 | 48 | #2,954 | — |
| 1999 | 45 | 45 | #2,943 | — |
| 1998 | 48 | 48 | #2,764 | — |
| 1997 | 47 | — | #2,888 | #9,481 |
| 1996 | 43 | — | #3,159 | #8,101 |
| 1995 | 39 | — | #2,985 | — |
| 1994 | 60 | — | #2,418 | #7,067 |
| 1993 | 40 | — | #3,358 | #6,922 |
| 1992 | 96 | — | #1,762 | #4,353 |
| 1991 | 76 | — | #2,020 | #6,028 |
| 1990 | 77 | — | #2,032 | #4,709 |
| 1989 | 86 | — | #1,754 | #5,228 |
| 1988 | 82 | — | #1,689 | #6,541 |
| 1987 | 97 | — | #1,519 | #3,555 |
| 1986 | 98 | — | #1,343 | — |
| 1985 | 73 | — | #1,712 | #5,899 |
| 1984 | 77 | — | #1,491 | — |
| 1983 | 78 | — | #1,611 | #4,182 |
| 1982 | 95 | — | #1,385 | #5,096 |
| 1981 | 63 | — | #1,916 | #5,022 |
| 1980 | 50 | — | #2,313 | #4,557 |
| 1979 | 45 | — | #2,627 | #3,598 |
| 1978 | 28 | — | #3,403 | #5,151 |
| 1977 | 18 | — | #3,928 | — |
| 1976 | 25 | — | #3,832 | #4,062 |
| 1975 | 24 | — | #3,972 | #3,999 |
| 1974 | 13 | — | #4,497 | — |
| 1973 | 7 | — | #6,757 | — |
| 1972 | 12 | — | #4,553 | — |
| 1971 | 8 | — | #6,078 | — |
| 1970 | 8 | — | #5,882 | — |
| 1968 | 7 | — | #5,700 | — |