Syndey is a distinctive girls' name in United States, ranking #5293 in 2000 with 22 recorded births. The name reached its all-time peak in 2001 with 30 births ranking #4193. Since 1996, the popularity has increased by 29.4%. In 2000, approximately 1 in every 82,544 girls born was named Syndey. FALLING Recent data shows the name is currently falling.