Sydnie is a distinctive girls' name in United States, ranking #4291 in 2015 with 34 recorded births. The name reached its all-time peak in 2000 with 352 births ranking #681. Since 1996, the popularity has decreased by 85.5%. In 2015, approximately 1 in every 52,490 girls born was named Sydnie. FALLING Recent data shows the name is currently falling.