Cydne is a very rare variant of Cydney that was most common in the 1990s and has all but disappeared.
Cydne is a girl name. It last appears in U.S. records in 2006. Cydne was first reported in SSA data in 1948 and peaked in 1997 (11 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2006 | 7 | 7 | #13,924 |
| 2005 | 7 | 7 | #13,326 |
| 2004 | 7 | 7 | #13,076 |
| 2003 | 7 | 7 | #12,710 |
| 2001 | 7 | 7 | #12,345 |
| 2000 | 10 | 10 | #9,318 |
| 1999 | 7 | 7 | #11,649 |
| 1998 | 8 | 8 | #10,328 |
| 1997 | 11 | — | #7,885 |
| 1996 | 5 | — | #13,985 |
| 1995 | 8 | — | #9,785 |
| 1994 | 6 | — | #12,124 |
| 1993 | 8 | — | #9,767 |
| 1992 | 5 | — | #13,752 |
| 1991 | 6 | — | #11,831 |
| 1990 | 7 | — | #10,460 |
| 1988 | 7 | — | #9,491 |
| 1986 | 7 | — | #8,733 |
| 1981 | 6 | — | #9,364 |
| 1966 | 5 | — | #6,769 |
| 1963 | 6 | — | #6,018 |
| 1961 | 5 | — | #6,742 |
| 1960 | 8 | — | #4,835 |
| 1959 | 5 | — | #6,446 |
| 1957 | 6 | — | #5,516 |
| 1956 | 7 | — | #4,923 |
| 1954 | 7 | — | #4,751 |
| 1953 | 5 | — | #5,827 |
| 1950 | 9 | — | #3,727 |
| 1949 | 5 | — | #5,396 |
| 1948 | 6 | — | #4,779 |