Sydnei
Girl nameSydnei has been given to 635 babies in the U.S. since 1988. It peaked in 2005.
Popularity over time births per year, 1880–2025
Total babies
635
Peak year
2005 (37 babies)
Rank in 2025
Below top 1000
First recorded
1988
10-year trend
▼ -100%
Gender split
All girls
Spellings & variants
Names one letter away from Sydnei — alternate spellings parents actually use.
Names with a similar vibe
Same primary gender, peaked around the same years, and roughly as common as Sydnei.
FAQ
How popular is the name Sydnei?
Sydnei has been given to 635 babies in the U.S. since 1988. It ranked below the top 1000 in 2025.
When did the name Sydnei peak?
Sydnei peaked in 2005, when 37 babies were given the name.
Is Sydnei a girl or boy name?
Sydnei is primarily a girl name (100% of babies named Sydnei are girls).
Get new name insights first
Occasional updates when we add new data & tools. No spam, unsubscribe anytime by replying to any email or writing to hello@zalize.com.
By subscribing you agree to our privacy policy. We store only your email address and the date you signed up.