Syndey is a distinctive girls' name in United States, ranking #12472 in 2008 with 9 recorded births. The name reached its all-time peak in 2001 with 30 births ranking #4193. Since 1996, the popularity has decreased by 47.1%. In 2008, approximately 1 in every 210,080 girls born was named Syndey. FALLING Recent data shows the name is currently falling.