The baby name Sydnei appears in baby name data for the United States from 1996 to 2009. It was most popular in 2005 with 20 babies given the name.
Over the period shown, Sydnei has stayed at a similar level of popularity.
| Year | Count |
|---|---|
| 1996 | 5 |
| 1997 | 15 |
| 1999 | 5 |
| 2002 | 5 |
| 2004 | 12 |
| 2005 | 20 |
| 2006 | 8 |
| 2009 | 10 |