Sydnee
A respelling of Sydney, from the English surname Sidney. It is traced either to the Norman place Saint-Denis or to an Old English phrase for a wide island.
Sydnee in 2025
Sydnee was given to 14 babies in the United States in 2025, making it the 13,480th most popular name of the year. That is roughly one in every 236,810 babies born.
The history of Sydnee
Sydnee reached its highest point in 2003, when 506 babies were given the name, ranking 1,030th that year. Its best-ever ranking was 1,013th, in 1999.
Across the 81 years of records since 1945, 8,255 babies have been named Sydnee. Half of them were born before 2002, which places the name's centre of gravity with Generation Z.
Sydnee by decade
| Decade | Babies named Sydnee | Best rank |
|---|---|---|
| 1940s | 12 | 6,277 |
| 1950s | 47 | 6,657 |
| 1960s | 35 | 7,774 |
| 1970s | 38 | 9,209 |
| 1980s | 211 | 3,198 |
| 1990s | 2,542 | 1,013 |
| 2000s | 3,842 | 1,018 |
| 2010s | 1,374 | 1,750 |
| 2020s | 154 | 6,252 |
Where Sydnee is heading
Sydnee has fallen 85% over the past decade, from 96 babies in 2015 to 14 in 2025.
That is less than 5% of its 2003 peak — Sydnee is now a rare name in the United States.
Names like Sydnee
Names that rose and fell at the same time as Sydnee.