The baby name Sydnee appears in baby name data for the United States from 1986 to 2022. It was most popular in 2003 with 503 babies given the name.
In the later years of this period, Sydnee has become less common than it once was.
| Year | Count |
|---|---|
| 1986 | 10 |
| 1989 | 5 |
| 1990 | 65 |
| 1991 | 44 |
| 1992 | 69 |
| 1993 | 68 |
| 1994 | 148 |
| 1995 | 269 |
| 1996 | 262 |
| 1997 | 363 |
| 1998 | 370 |
| 1999 | 474 |
| 2000 | 491 |
| 2001 | 491 |
| 2002 | 339 |
| 2003 | 503 |
| 2004 | 488 |
| 2005 | 454 |
| 2006 | 406 |
| 2007 | 378 |
| 2008 | 368 |
| 2009 | 205 |
| 2010 | 253 |
| 2011 | 261 |
| 2012 | 129 |
| 2013 | 117 |
| 2014 | 67 |
| 2015 | 31 |
| 2016 | 59 |
| 2017 | 29 |
| 2018 | 5 |
| 2019 | 12 |
| 2021 | 7 |
| 2022 | 6 |