Sydnie is a distinctive girls' name in United States, ranking #782 in 2001 with 305 recorded births. The name reached its all-time peak in 2000 with 352 births ranking #681. Since 1996, the popularity has increased by 29.8%. In 2001, approximately 1 in every 5,903 girls born was named Sydnie. FALLING Recent data shows the name is currently falling.