Cynthya is a distinctive girls' name in United States, ranking #14906 in 2005 with 6 recorded births. The name reached its all-time peak in 2001 with 17 births ranking #6388. Since 1996, the popularity has decreased by 45.5%. In 2005, approximately 1 in every 307,950 girls born was named Cynthya. STABLE Recent data shows the name is currently stable.