Cydney is a distinctive girls' name in United States, ranking #2112 in 2006 with 92 recorded births. The name reached its all-time peak in 1998 with 227 births ranking #921. Since 1996, the popularity has decreased by 56.6%. In 2006, approximately 1 in every 20,664 girls born was named Cydney. STABLE Recent data shows the name is currently stable.