Feminine dossier · first seen 1947
Sydni
Endangered
Down 98.3% from peak
Peak era
2000
Peak births
468
Current vitality
Rare
Peak generation
Gen Z
Quick answers about Sydni
How many people are named Sydni?
An estimated 5,251 living Americans are named Sydni.
How rare is Sydni?
Sydni is very rare among babies today, with 8 girls receiving the name in 2025, down 98.3% from its 2000 peak.
How old is the typical Sydni?
The median age of a living American named Sydni is approximately 25 years, with most bearers falling between 21 and 29 years old.
Is Sydni still popular?
No. Sydni is endangered as a baby name, down 98.3% from its 2000 peak with 8 births in 2025.
Where is Sydni most common?
Sydni has its strongest geographic signal in Louisiana, where it appears 4.9× more often than the national baseline.
1947Peak 20002025
Peak year
2000
Decline from peak
98.3%
2025
8
All-time
5,361