Sydney is a moderately popular girls' name in United States, ranking #249 in 2021 with 1,231 recorded births. The name reached its all-time peak in 2000 with 10,243 births ranking #23. Since 1996, the popularity has decreased by 83.0%. In 2021, approximately 1 in every 1,332 girls born was named Sydney. STABLE Recent data shows the name is currently stable.