Sydni is an uncommon variant of Sydney that peaked in 2000 and has since faded.
Sydni is a girl name. In 2025 it ranked #11,816 for girl births in the United States (and #19,829 across all names), given to 8 babies. Sydni first appears in 1947 and peaked in 2000 (468 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2025 | 8 | 8 | #11,816 |
| 2024 | 15 | 15 | #7,557 |
| 2023 | 5 | 5 | #17,347 |
| 2022 | 16 | 16 | #7,251 |
| 2021 | 16 | 16 | #7,224 |
| 2020 | 28 | 28 | #4,745 |
| 2019 | 31 | 31 | #4,531 |
| 2018 | 33 | 33 | #4,345 |
| 2017 | 45 | 45 | #3,474 |
| 2016 | 40 | 40 | #3,845 |
| 2015 | 42 | 42 | #3,695 |
| 2014 | 71 | 71 | #2,533 |
| 2013 | 53 | 53 | #3,119 |
| 2012 | 71 | 71 | #2,563 |
| 2011 | 85 | 85 | #2,236 |
| 2010 | 104 | 104 | #1,937 |
| 2009 | 109 | 109 | #1,931 |
| 2008 | 130 | 130 | #1,715 |
| 2007 | 129 | 129 | #1,702 |
| 2006 | 176 | 176 | #1,330 |
| 2005 | 200 | 200 | #1,161 |
| 2004 | 247 | 247 | #971 |
| 2003 | 314 | 314 | #787 |
| 2002 | 331 | 331 | #738 |
| 2001 | 399 | 399 | #630 |
| 2000 | 468 | 468 | #559 |
| 1999 | 397 | 397 | #611 |
| 1998 | 240 | 240 | #883 |
| 1997 | 253 | — | #818 |
| 1996 | 235 | — | #850 |
| 1995 | 242 | — | #815 |
| 1994 | 162 | — | #1,113 |
| 1993 | 119 | — | #1,384 |
| 1992 | 116 | — | #1,415 |
| 1991 | 93 | — | #1,626 |
| 1990 | 89 | — | #1,668 |
| 1989 | 63 | — | #2,022 |
| 1988 | 43 | — | #2,532 |
| 1987 | 40 | — | #2,567 |
| 1986 | 19 | — | #4,332 |
| 1985 | 19 | — | #4,268 |
| 1984 | 11 | — | #6,237 |
| 1983 | 13 | — | #5,415 |
| 1982 | 9 | — | #7,395 |
| 1975 | 6 | — | #8,905 |
| 1971 | 7 | — | #7,271 |
| 1970 | 5 | — | #9,158 |
| 1966 | 9 | — | #4,815 |
| 1947 | 5 | — | #6,030 |