Sidni is a very rare girls' name that was most common in the 1990s and has all but disappeared.
Sidni is a girl name. It last appears in U.S. records in 2013. Sidni was first reported in SSA data in 1949 and peaked in 1995 (21 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2013 | 5 | 5 | #18,894 |
| 2011 | 7 | 7 | #14,636 |
| 2009 | 6 | 6 | #16,996 |
| 2008 | 5 | 5 | #20,058 |
| 2006 | 8 | 8 | #13,453 |
| 2005 | 11 | 11 | #10,022 |
| 2004 | 12 | 12 | #9,190 |
| 2003 | 13 | 13 | #8,420 |
| 2002 | 13 | 13 | #8,222 |
| 2001 | 13 | 13 | #8,130 |
| 2000 | 18 | 18 | #6,178 |
| 1999 | 19 | 19 | #5,627 |
| 1998 | 10 | 10 | #9,181 |
| 1997 | 16 | — | #6,127 |
| 1996 | 7 | — | #11,632 |
| 1995 | 21 | — | #4,824 |
| 1994 | 13 | — | #7,032 |
| 1993 | 8 | — | #10,451 |
| 1992 | 8 | — | #10,345 |
| 1991 | 10 | — | #8,524 |
| 1989 | 8 | — | #9,558 |
| 1949 | 5 | — | #5,951 |